Diplexer and electronic device including same

Abstract

A diplexer according to an embodiment of the present disclosure may comprise: a first filter circuit configured to pass signals in a first frequency band; and a second filter circuit configured to pass signals in a second frequency band. The first filter circuit may include a first acoustic resonator and a first LC filter, configured not to pass signals in a third frequency band. The second filter circuit may include a second acoustic resonator and a second LC filter, configured not to pass signals in a fourth frequency band.

Description

Diplexer and electronic device including same

[0001] Embodiments disclosed in this document relate to a diplexer and an electronic device including the same.

[0002] An electronic device that performs wireless communication can wirelessly transmit and receive RF (radio frequency) signals in one or more frequency bands via an antenna. To transmit and receive a greater amount of information over the same period of time, the electronic device can utilize RF signals across multiple frequency bands. The electronic device can receive signals across multiple frequency bands based on carrier aggregation. The electronic device can also receive signals across multiple frequency bands based on DC (dual connectivity).

[0003] As the functionality of portable electronic devices such as mobile phones increases, these devices can support wireless communication using various protocols. These devices can receive signals across multiple frequency bands corresponding to these protocols. In one example, the multiple frequency bands used by the electronic device may be adjacent to each other.

[0004] The above information may be provided as background art to aid in understanding the present disclosure. No claim or determination is made as to whether any of the above is applicable as prior art in connection with the present disclosure.

[0005] According to one embodiment, a diplexer comprises: a first terminal configured to be connected to an RF signal path external to the diplexer; a second terminal electrically connected to the first terminal via a first RF signal path internal to the diplexer; a third terminal electrically connected to the first terminal via a second RF signal path internal to the diplexer; a first filter circuit forming at least a portion of the first RF signal path and configured to substantially pass signals in a first frequency band lower than a first designated frequency (f2); And a second filter circuit forming at least a portion of the second RF signal path and configured to substantially pass signals in a second frequency band higher than a second designated frequency (f3), wherein the first filter circuit comprises a first acoustic resonator configured not to pass a third frequency band, and a first LC filter connected in series with the first acoustic resonator and configured to pass a frequency band lower than the first designated frequency (f2), and the second filter circuit comprises a second acoustic resonator configured not to pass a fourth frequency band, and a second LC filter connected in series with the second acoustic resonator and configured to pass a frequency band higher than a second designated frequency (f3), wherein the first designated frequency (f2) may be lower than the second designated frequency (f3).

[0006] A device for filtering a frequency of a signal according to one embodiment comprises a plurality of terminals including a first terminal, a second terminal, and a third terminal, a low band filter circuit including a first acoustic resonator and a first LC filter connected in series with each other between the first terminal and the second terminal, and a high band filter circuit including a second acoustic resonator and a second LC filter connected in series with each other between the first terminal and the third terminal, wherein the low band filter circuit is configured to substantially pass a first signal portion corresponding to a first frequency band lower than a first designated frequency (f2) for an input signal, and the high band filter circuit is configured to substantially pass a second signal portion corresponding to a second frequency band higher than a second designated frequency (f3) for the input signal, and the first designated frequency (f2) may be lower than the second designated frequency (f3).

[0007] A portable communication device according to one embodiment comprises an antenna, a transceiver, and a diplexing circuit, wherein the diplexing circuit comprises a first terminal connected to at least one of an RF signal path connected to one of the antenna or the transceiver or an RF signal path external to the diplexing circuit, a second terminal connected to the first terminal via a first RF signal path internal to the diplexing circuit, a third terminal connected to the first terminal via a second RF signal path internal to the diplexing circuit, a first filter circuit forming at least a portion of the first RF signal path and configured to substantially pass signals in a first frequency band lower than a first designated frequency (f2), and a second filter circuit forming at least a portion of the second RF signal path and configured to substantially pass signals in a second frequency band higher than a second designated frequency (f3), wherein the first designated frequency (f2) is lower than the second designated frequency (f3), and the first filter circuit comprises a first acoustic resonator configured not to pass a third frequency band. And the first LC filter connected in series with the first acoustic resonator and set to pass a frequency band lower than a first designated frequency (f2), and the second filter circuit may include a second acoustic resonator set not to pass a fourth frequency band and a second LC filter connected in series with the second acoustic resonator and set to pass a frequency band higher than a second designated frequency (f3).

[0008] Figure 1 is a block diagram showing the configuration of an electronic device according to one embodiment.

[0009] FIG. 2 is a diagram showing the configuration of an electronic device according to one embodiment.

[0010] FIGS. 3A and 3B are diagrams showing the intensities of signals transmitted and received by an electronic device according to one embodiment.

[0011] Figures 4a to 4c are drawings showing the configuration of a diplexer according to one embodiment.

[0012] FIG. 5 illustrates the frequency bands of signals transmitted and received by an electronic device according to one embodiment.

[0013] FIG. 6 is a block diagram of an electronic device within a network environment according to one embodiment.

[0014] In connection with the description of the drawings, the same or similar reference numerals may be used for identical or similar components.

[0015] Hereinafter, various embodiments of the present invention will be described with reference to the attached drawings. However, this is not intended to limit the present invention to specific embodiments, and it should be understood that the present invention encompasses various modifications, equivalents, and / or alternatives of the embodiments.

[0016] Figure 1 is a block diagram showing the configuration of an electronic device according to one embodiment.

[0017] Referring to FIG. 1, the electronic device (10) may include a diplexer (100), an antenna (110), a first filter circuit (120), or a second filter circuit (130). In one example, the diplexer (100) included in the electronic device (10) may include a first terminal (101), a second terminal (103), a third terminal (105), an internal first RF signal path (107), and / or an internal second RF signal path (109). In the present disclosure, examples are described focusing on the diplexer (100) for convenience of explanation. However, those skilled in the art will understand that the embodiments of the present disclosure may also be applied to examples of a multiplexer or a duplexer that processes a plurality of signals having different frequencies. For example, the embodiments of the present disclosure may also be applied when the electronic device (10) processes a plurality of signals having different frequencies using a multiplexer or a duplexer.

[0018] According to one embodiment, the electronic device (10) can transmit and receive signals corresponding to various frequency bands. In one example, the electronic device (10) can separate the frequency bands of signals corresponding to various frequency bands or alleviate mutual interference and noise between a plurality of signals by using a diplexer (100). In the present disclosure, by using a novel design structure of the diplexer (100) that plays a role in frequency separation of an RFFE (radio frequency front end) of a wireless communication device or terminal, when the frequency interval between wireless communication bands is narrow, the loss of signals of various communication bands passing through the diplexer (100) can be reduced and different band rejection characteristics can be improved.

[0019] According to one embodiment, the electronic device (10) of FIG. 1 may correspond to, for example, the electronic device (601) of FIG. 6. The configurations of the electronic device (10) described below with respect to FIG. 1 are merely examples, and the embodiments of the present disclosure are not limited thereto. For example, the electronic device (10) may not include at least some of the configurations illustrated in FIG. 1 (e.g., the first terminal (101) of FIG. 1). For example, the electronic device (10) may further include other configurations (e.g., the configuration of the electronic device (601) of FIG. 6) in addition to the configurations illustrated in FIG. 1.

[0020] According to one embodiment, the diplexer (100) can distinguish and pass different frequency signals so that two or more different frequency signals can share a path (e.g., 111) of one antenna (110). In one example, the diplexer (100) can reduce interference between two signals (e.g., the first frequency signal or the second frequency signal) or leakage of the two signals (e.g., the first frequency signal or the second frequency signal) for a first frequency signal passing through a second terminal (103) and a second frequency signal passing through a third terminal (105), and can transmit the two signals (e.g., the first frequency signal or the second frequency signal) to one antenna (110). In one example, the diplexer (100) can allow the first frequency signal and the second frequency signal to share a path (e.g., 111) between the first terminal (101) and the antenna (110). In one example, the first frequency signal described in the present disclosure may correspond to a first RF signal, a low-band frequency signal, or a mid-band frequency signal, and the second frequency signal may correspond to a second RF signal, a high-band frequency signal.

[0021] According to one embodiment, the diplexer (100) can cause the first frequency signal to pass through the external RF signal path (111) and the internal first RF signal path (107), and substantially not pass through the third terminal (105). For example, the diplexer (100) can cause the first frequency signal to pass through a path including the second terminal (103), the first terminal (101), and the antenna (110), and substantially not pass through the third terminal (105). For example, the diplexer (100) can cause the path including the second filter circuit (130) and the third terminal (105) to be in a substantially open circuit state for the first frequency signal.

[0022] In one embodiment, the diplexer (100) can cause the second frequency signal to pass through the external RF signal path (111) and the internal second RF signal path (109), and substantially not pass through the second terminal (103). For example, the diplexer (100) can cause the second frequency signal to pass through a path including the third terminal (105), the first terminal (101), and the antenna (110), and substantially not pass through the second terminal (103). For example, the diplexer (100) can cause the path including the first filter circuit (120) and the second terminal (103) to be in a substantially open circuit state for the second frequency signal.

[0023] In one embodiment, the diplexer (100) can cause a first frequency signal to be applied to a path including a second terminal (103), a first terminal (101), and an antenna (110). In one example, the diplexer (100) can prevent the first frequency signal from being applied to a third terminal (105). In one example, the diplexer (100) can cause a second frequency signal to be applied to a path including a third terminal (105), a first terminal (101), and an antenna (110). In one example, the diplexer (100) can prevent the second frequency signal from being applied to the second terminal (103).

[0024] According to one embodiment, the diplexer (100) can distinguish frequency signals passing through the diplexer (100) based on a cut-off frequency. In one example, the diplexer (100) can allow signals corresponding to a frequency lower than the first cut-off frequency to pass through a path including the second terminal (103), the first terminal (101), and the antenna (110), based on the first cut-off frequency, and can allow signals corresponding to a frequency higher than the second cut-off frequency to pass through a path including the third terminal (105), the first terminal (101), and the antenna (110). In one example, the first LC filter (124) can have a first cut-off frequency, and the second LC filter (134) can have a second cut-off frequency. In one example, the cutoff frequencies of the first LC filter (124) and the second LC filter (134) may correspond to the cutoff frequency of the diplexer (100). A detailed description of the cutoff frequency will be described later with reference to FIG. 3a.

[0025] According to one embodiment, the diplexer (100) can separate the paths of the first frequency signal and the second frequency signal transmitted and received using the antenna (110). For example, the diplexer (100) can cause the first frequency signal received using the antenna (110) to be applied to the first RF signal path (107) inside the diplexer and not to be applied to the third terminal (105). For example, the diplexer (100) can cause the second frequency signal received using the antenna (110) to be applied to the second RF signal path (109) and not to be applied to the second terminal (103).

[0026] According to one embodiment, the second terminal (103) may correspond to a terminal through which a first frequency signal transmitted and received by the diplexer (100) passes. In one example, the second terminal (103) may correspond to at least one node connected to a first filter circuit (120) included in the diplexer (100). For example, the first filter circuit (120) may include one or more nodes, and the second terminal (103) may correspond to one of the one or more nodes. In one example, the terminals described in the present disclosure may correspond to ports through which signals are input and output. For example, the first terminal (101), the second terminal (103), and the third terminal (105) may correspond to the first port, the second port, and the third port, respectively.

[0027] In one embodiment, the diplexer (100) may include at least one acoustic resonator (e.g., 122, 132). In one example, a diplexer including an acoustic resonator may have higher adjacent frequency signal discrimination performance compared to an inductor and capacitor-based diplexer. In one example, the acoustic resonator (e.g., 122, 132) may be used in the form of a surface acoustic wave (SAW) filter using a SAW and / or a bulk acoustic wave (BAW) filter using a BAW. In one example, the acoustic resonator (e.g., 122, 132) may be made small in size and may be mass-produced because it uses acoustic waves with shorter wavelengths than electromagnetic waves at the same frequency.

[0028] According to one embodiment, the diplexer (100) may include a SAW filter and / or a BAW filter. In one example, the SAW filter included in the diplexer (100) can convert a signal, which is an electromagnetic wave at the speed of light, into a surface acoustic wave, which is a low-speed acoustic wave, and then extract only a specific frequency. The SAW filter may have a narrow bandwidth of pass frequencies and excellent characteristics at the frequency band boundary. In one example, the BAW filter included in the diplexer (100) can effectively filter high-frequency signals. The BAW filter can mitigate signal attenuation by having a relatively low insertion loss. In one example, the BAW filter can have high frequency selectivity even in a narrow bandwidth, thereby effectively separating the frequency band and passing only the desired signal.

[0029] According to one embodiment, the first acoustic resonator (122) may correspond to a filter that blocks signals in a set frequency band and passes signals outside the set frequency band. In one example, the first acoustic resonator (122) may correspond to a notch filter or a band reject filter. For example, the first acoustic resonator (122) may be used to block signals in a frequency band that causes unnecessary interference. In one example, the stop band of the first acoustic resonator (122) may include a frequency band adjacent to the cutoff frequency of the diplexer (100). In one example, the stop band of the first acoustic resonator (122) may correspond to the lowest frequency band of the frequency band that the second LC filter (134) passes. In one example, the cutoff band of the first acoustic resonator (122) may be included in the transition frequency band of the frequency signal intensity formed by the first LC filter (124) or the transition frequency band of the frequency signal intensity formed by the second LC filter (134).

[0030] In one embodiment, the acoustic resonator described in the present disclosure may correspond to a band stop filter that blocks signals in a certain frequency band. For example, the first acoustic resonator (122) and the second acoustic resonator (132) may correspond to a first band stop filter and a second band stop filter. In one example, the first acoustic resonator (122) may form at least a portion of a first notch filter, and the second acoustic resonator (132) may form at least a portion of a second notch filter.

[0031] According to one embodiment, the third terminal (105) may correspond to a terminal through which a second frequency signal transmitted and received by the diplexer (100) passes. In one example, the third terminal (105) may correspond to at least one node connected to a second filter circuit (130) included in the diplexer (100). For example, the second filter circuit (130) may include one or more nodes, and the third terminal (105) may correspond to one of the one or more nodes.

[0032] According to one embodiment, the second acoustic resonator (132) may correspond to a filter that blocks signals in a set frequency band and passes signals outside the set frequency band. In one example, the second acoustic resonator (132) may correspond to a notch filter or a band rejection filter. For example, the second acoustic resonator (132) may be used to block signals in a frequency band that causes unnecessary interference. In one example, the cutoff band of the second acoustic resonator (132) may include a frequency band adjacent to the cutoff frequency of the diplexer (100). In one example, the cutoff band of the second acoustic resonator (132) may correspond to the highest frequency band of the frequency band that the first LC filter (124) passes. In one example, the cutoff band of the second acoustic resonator (132) may be included in the transition frequency band of the frequency signal intensity formed by the first LC filter (124) or the transition frequency band of the frequency signal intensity formed by the second LC filter (134). A detailed description of the transition frequency band will be described later with reference to FIG. 3A.

[0033] According to one embodiment, the antenna (110) may correspond to an antenna shared by signals passed through the diplexer (100). In one example, the antenna (110) may wirelessly receive signals of a plurality of configured frequency bands. For example, the antenna (110) may include an antenna array or an antenna module. In one example, the antenna (110) may transmit and receive signals of a first frequency band and simultaneously transmit and receive signals of a second frequency band. The antenna (110) may transmit and receive signals included in a plurality of frequency bands adjacent to the plurality of configured frequency bands. In one example, the antenna (110) may receive signals included in some channels among a plurality of channels included in one frequency band.

[0034] In one embodiment, the first LC filter (124) can separate a first frequency band from a second frequency band. The first LC filter (124) can pass a signal having a frequency lower than a first cutoff frequency. For example, the first LC filter (124) can pass the first frequency band. In one example, the first LC filter (124) can be electrically connected to a duplexer. For example, the first frequency signal can be transmitted to the duplexer through the first LC filter (124). In one example, the LC filter described in the present disclosure can correspond to a band pass filter that passes a signal of a certain frequency band. For example, the first LC filter (124) and the second LC filter (134) can correspond to a low band pass filter and a high band pass filter, respectively.

[0035] In one embodiment, the second LC filter (134) can separate the second frequency band from the first frequency band. The second LC filter (134) can pass a signal having a frequency higher than the second cutoff frequency. For example, the second LC filter (134) can pass the second frequency band. In one example, the second LC filter (134) can be electrically connected to a duplexer. For example, the second frequency signal can be transmitted to the duplexer through the second LC filter (134).

[0036] According to one embodiment, the electronic device (10) further includes a printed circuit board (PCB), and the first LC filter (124) and the second LC filter (134) can be disposed on the PCB. In one example, the diplexer (100) can be disposed on the PCB or formed as a single module. For example, the diplexer (100) can form at least a portion of a circuit included in the electronic device (10). For example, the diplexer (100) can be disposed on the electronic device (10) or detached from the electronic device (10) as a single module.

[0037] According to one embodiment, the first LC filter (124) may correspond to a low pass filter, and the second LC filter (134) may correspond to a high pass filter. In one example, the LC filter (e.g., 124, 134) may be used as a low pass filter and / or a high pass filter by using an inductor and / or a capacitor, which are components that conserve electromagnetic energy. Accordingly, the LC filter (e.g., 124, 134) may make the corresponding impedance close to infinity or close to 0, depending on whether the frequency of the signal passing through the LC filter (e.g., 124, 134) is high or low. In one example, an LC filter (e.g., 124, 134) can conserve energy in addition to the loss due to the inductor and / or capacitor configuration itself by using an inductor and / or capacitor, and thus can have less loss in the process of processing a wideband frequency signal.

[0038] In one embodiment, the acoustic resonator (e.g., 122, 132) may correspond to a band stop filter. In one example, the acoustic resonator may have high energy conversion efficiency by utilizing the resonance operation of the frequency. In one example, the acoustic resonator (e.g., 122, 132) may have high selectivity performance by passing signals with a limited frequency bandwidth and blocking other frequencies by utilizing the resonance and / or antiresonance frequency of the frequency. In one example, the acoustic resonator (e.g., 122, 132) may correspond to a filter for processing narrowband frequency signals.

[0039] According to one embodiment, the diplexer (100) may include an LC filter (e.g., 124, 134) having an inductor and capacitor configuration that exhibits excellent IL performance in a wide band and an acoustic resonator (e.g., 122, 132) that exhibits excellent band selectivity / rejection performance in a narrow band. In one example, the diplexer (100) may secure the band selectivity / rejection performance in a narrow band by using the acoustic resonator (e.g., 122, 132), and may secure the IL performance in a wide band by using the LC filter (e.g., 124, 134) having an inductor and capacitor configuration. In one example, the diplexer (100) according to the present disclosure may more precisely distinguish different frequency signals in a narrower frequency band, compared to a diplexer using a filter based on an existing inductor and capacitor.

[0040] In one embodiment, the first acoustic resonator (122) may be connected in series or in parallel with at least a portion of the first filter circuit (120). For example, the first filter circuit (120) may correspond to a circuit in which the first acoustic resonator (122) and the first LC filter (124) are connected in series or in parallel. In one example, the second acoustic resonator (132) may be connected in series or in parallel with at least a portion of the second filter circuit (130). For example, the second filter circuit (130) may correspond to a circuit in which the second acoustic resonator (132) and the second LC filter (134) are connected in series or in parallel.

[0041] According to one embodiment, a diplexer (100) comprises a first terminal (101) configured to be connected to an external RF signal path (111) of the diplexer (100), a second terminal (103) electrically connected to the first terminal (101) through a first RF signal path (107) inside the diplexer (100), a third terminal (105) electrically connected to the first terminal (101) through a second RF signal path (109) inside the diplexer (100), a first filter circuit (120) configured to form at least a portion of the first RF signal path (107) and to substantially pass signals of a first frequency band lower than a first designated frequency (f2), and a second filter circuit (130) configured to form at least a portion of the second RF signal path (109) and to substantially pass signals of a second frequency band higher than a second designated frequency (f3), wherein the first filter circuit (120) does not pass the third frequency band. A first acoustic resonator (122) is set not to pass, and a first LC filter (124) is connected in series with the first acoustic resonator (122) and is set to pass a frequency band lower than a first designated frequency (f2), and a second filter circuit (130) includes a second acoustic resonator (132) is set not to pass a fourth frequency band, and a second LC filter (134) is connected in series with the second acoustic resonator (132) and is set to pass a frequency band higher than a second designated frequency (f3), and the first designated frequency (f2) may be lower than the second designated frequency (f3).

[0042] According to one embodiment, a diplexer (100) may further include a first filter circuit (120) that includes an inductor connected between a first terminal (101) and a first acoustic resonator (122), and a second filter circuit (130) that includes a capacitor connected between the first terminal (101) and a second acoustic resonator (132).

[0043] According to one embodiment, a diplexer (100) is set so as not to pass a fifth frequency band corresponding to a first designated frequency (f2) and a second designated frequency (f3), and a bandwidth value of the fifth frequency band can be set to 5% or less compared to a center frequency value of the fifth frequency band.

[0044] According to one embodiment, a diplexer (100) that does not include a first acoustic resonator (122) or a second acoustic resonator (132) may have poor filter characteristics when, in a high-frequency band (e.g., a band of 2 GHz or higher), the frequency bandwidth value of the frequency to be blocked is set to 10% or less compared to the center frequency value of the frequency to be blocked. In one example, a diplexer (100) that includes a first acoustic resonator (122) or a second acoustic resonator (132) may implement, in a high-frequency band (e.g., a band of 2 GHz or higher), the frequency bandwidth value of the frequency to be blocked is set to 10% or less compared to the center frequency value of the frequency to be blocked, without damaging the filter characteristics. For example, for the 2 GHz peripheral section, the frequency bandwidth value of the frequency to be blocked may correspond to 5% or less compared to the center frequency value of the frequency to be blocked by the diplexer (100) including the first acoustic resonator (122) or the second acoustic resonator (132).

[0045] According to one embodiment, the frequency bandwidth value of the frequency to be blocked by the diplexer (100) may correspond to an adjacent frequency discrimination characteristic value compared to the center frequency value of the frequency to be blocked. In one example, the lower the adjacent frequency discrimination characteristic value corresponds to a lower %, the narrower the band may correspond to a diplexer that separates adjacent frequency signals with less insertion loss. In one example, a specific calculation process, graph, and detailed description of the frequency bandwidth value of the frequency to be blocked compared to the center frequency value of the frequency to be blocked by the diplexer (100) will be described later with reference to FIG. 3b.

[0046] FIG. 2 is a diagram showing the configuration of an electronic device according to one embodiment.

[0047] Referring to FIG. 2, the electronic device (10) may include a front end module (200). The front end module (200) may include one or more first amplifiers (e.g., 210, 212), one or more switches (e.g., 220, 222, 240, 260, 280), one or more first to fourth filters (e.g., 230, 232, 234, 236), and one or more second amplifiers (e.g., 270, 272, 274). In one example, the front end module (200) may be electrically connected to a diplexer (100) that is electrically connected to an antenna (110). Additionally, the front end module (200) may be electrically connected to one or more second antennas (e.g., 290, 292, 294).

[0048] According to one embodiment, referring also to FIG. 1, the front end module (200) can transmit an intermediate frequency signal to the diplexer (100) using a path (250) connecting the front end module (200) and the second terminal (103) of FIG. 1, and can receive a high frequency signal to the diplexer (100) using a path (252) connecting the front end module (200) and the third terminal (105) of FIG. 1. In one example, when the electronic device (10) transmits and receives an intermediate frequency signal and a high frequency signal using one antenna, the electronic device (10) can use a wideband filter such as the diplexer (100) that enables simultaneous transmission and reception of the intermediate frequency signal and the high frequency signal. In FIG. 2, it is assumed that the front end module (200) transmits an intermediate frequency signal using a path (250) connecting the front end module (200) and the second terminal (103) of FIG. 1, receives a high frequency signal using a path (252) connecting the front end module (200) and the third terminal (105) of FIG. 1, and transmits and receives the intermediate frequency signal and the high frequency signal using one antenna (110). However, the diplexer (100) can be utilized in various ways depending on the frequency band used or the types of signals transmitted and received.

[0049] According to one embodiment, a diplexer (100) used to transmit and receive a mid-band frequency signal and a high-band frequency signal using a single antenna (110) has a material limitation based on an inductor and a capacitor including a ceramic material, and an adjacent frequency band where the frequency signals of the two bands are split may have a relatively greater signal loss than other bands.

[0050] According to one embodiment, each of the one or more first amplifiers (e.g., 210, 212) may be connected to at least one terminal included in a transceiver. Each of the one or more first amplifiers (e.g., 210, 212) may include a power amplifier (PA) or a transmit amplifier. In one example, each of the one or more first amplifiers (e.g., 210, 212) may amplify a signal output from the transceiver. Each of the one or more first amplifiers (e.g., 210, 212) may obtain one or more transmit signals having a first frequency band and a second frequency band from the transceiver. Each of the one or more first amplifiers (e.g., 210, 212) may amplify and provide one or more transmit signals to the diplexer (100). Each of the one or more first amplifiers (e.g., 210, 212) may be a multi-mode multi-band amplifier (MMMB PA) capable of amplifying signals included in multiple frequency bands. Alternatively, each of the one or more first amplifiers (e.g., 210, 212) may amplify signals in a set frequency band. According to various embodiments disclosed in the present document, the electronic device (10) may include various numbers of first amplifiers (e.g., 210, 212) that amplify a transmission signal.

[0051] According to one embodiment, one or more of the first to fourth filters (e.g., 230, 232, 234, 236) may filter signals in a radio frequency band transmitted and received from one or more of the antennas (e.g., 290, 292, 294, 110). For example, the first to fourth filters (e.g., 230, 232, 234, 236) may be SAW filters or BAW filters.

[0052] According to one embodiment, the path (250) connecting the front end module (200) and the second terminal (103) of FIG. 1 may correspond to a path through which a first frequency signal transmitted from the front end module (200) to the diplexer (100) passes. Alternatively, the path (250) connecting the front end module (200) and the second terminal (103) of FIG. 1 may correspond to a path through which a first frequency signal transmitted from the diplexer (100) to the front end module (200) passes. In one example, referring also to FIG. 1, the path (250) connecting the front end module (200) and the second terminal (103) of FIG. 1 may be electrically connected to the first LC filter (124). In one example, the path (252) connecting the front end module (200) and the third terminal (105) of FIG. 1 may correspond to a path through which a second frequency signal transmitted from the front end module (200) to the diplexer (100) passes. Alternatively, the path (252) connecting the front end module (200) and the third terminal (105) of FIG. 1 may correspond to a path through which a second frequency signal transmitted from the diplexer (100) to the front end module (200) passes. In one example, the path (252) connecting the front end module (200) and the third terminal (105) of FIG. 1 may be electrically connected to a second LC filter (134).

[0053] In one embodiment, one or more second amplifiers (e.g., 270, 272, 274) can amplify one or more received signals. One or more second amplifiers (e.g., 270, 272, 274) can be connected to at least one terminal included in the transceiver. For example, one or more second amplifiers (e.g., 270, 272, 274) can include a receive amplifier or a low noise amplifier (LNA).

[0054] In one embodiment, one or more second amplifiers (e.g., 270, 272, 274) can amplify a receive signal acquired by the transceiver. In one example, one or more second amplifiers (e.g., 270, 272, 274) can acquire one or more receive signals having a first receive frequency band and a second receive frequency band from at least one duplexer module included in the electronic device (10). One or more second amplifiers (e.g., 270, 272, 274) can amplify and provide one or more receive signals to the transceiver. One or more second amplifiers (e.g., 270, 272, 274) can be multi-mode multi-band amplifiers. Alternatively, one or more second amplifiers (e.g., 270, 272, 274) can amplify a signal of a set frequency band. According to various embodiments disclosed in this document, the electronic device (10) may include various numbers of second amplifiers (e.g., 270, 272, 274) that amplify the received signal.

[0055] According to one embodiment, in one embodiment, one or more amplifiers can amplify a receive signal acquired by a transceiver. In one example, one or more amplifiers can acquire one or more receive signals having a first receive frequency band and a second receive frequency band from at least one duplexer module or diplexer included in the electronic device (10). For example, one or more second amplifiers (e.g., 270, 272, 274) can acquire one or more receive signals having a first receive frequency band and a second receive frequency band from at least one duplexer module or diplexer (100) included in the electronic device (10).

[0056] According to one embodiment, a reception signal of a specific frequency band received from one antenna (110) among one or more antennas (e.g., 110, 290, 292, 294) may be transmitted to a transceiver. The reception signal received from one antenna (110) may be filtered by at least one duplexer module included in the electronic device (10). The filtered reception signal may be transmitted directly to the transceiver or may be transmitted to the transceiver via a reception amplifier.

[0057] According to one embodiment, reception signals of different frequency bands received from antennas (e.g., 290, 292, 294) can be transmitted to one or more second amplifiers (e.g., 270, 272, 274) using a switch (280). The reception signals transmitted to the one or more second amplifiers (e.g., 270, 272, 274) can be amplified and transmitted to a transceiver. The transceiver can receive reception signals of various frequency bands from at least one of the one or more second amplifiers (e.g., 270, 272, 274).

[0058] According to one embodiment, the received signals of different frequency bands received from the antennas (e.g., 290, 292, 294) can be selectively transmitted to a corresponding filter among one or more of the first to fourth filters (e.g., 230, 232, 234, 236) using a switch (e.g., 260, 280) positioned between the antennas (e.g., 290, 292, 294) and the filters (e.g., 230, 232, 234, 236). The received signals transmitted to the corresponding filter among the one or more of the first to fourth filters (e.g., 230, 232, 234, 236) can be filtered based on a resonant frequency band of the corresponding filter.

[0059] An electronic device (10) according to one embodiment may further include a front end module configured to transmit or receive a signal having a first frequency band and a signal having a second frequency band through a diplexer (100).

[0060] FIGS. 3A and 3B are diagrams showing the intensities of signals transmitted and received by an electronic device according to one embodiment.

[0061] Referring to FIG. 1 and FIG. 3A together, the intensities of the intermediate frequency signal and the high frequency signal passing through the diplexer (100) may vary depending on the design structure of the diplexer (100). In one example, in the configuration of the diplexer (100), when the first acoustic resonator (122) and the second acoustic resonator (132) are excluded, the intensities of the intermediate frequency signal (300) and the high frequency signal (310) passing through the diplexer that does not include the first acoustic resonator (122) and the second acoustic resonator (132) may exhibit intensities similar to the solid lines in FIG. 3A. In one example, when a first acoustic resonator (122) and a second acoustic resonator (132) are included, such as in the configuration of a diplexer (100), the intensity (320) of a mid-band frequency signal and the intensity (330) of a high-band frequency signal passing through the diplexer (100) may exhibit intensities such as the dotted lines in FIG. 3A.

[0062] In one embodiment, for convenience of explanation, examples in the present disclosure are described focusing on intermediate frequency signals and high frequency signals. However, those skilled in the art will appreciate that embodiments of the present disclosure can also be applied to examples of low frequency signals and intermediate frequency signals, or low frequency signals and high frequency signals. For example, embodiments of the present disclosure can also be applied when processing signals in adjacent frequency bands, such as low frequency signals and intermediate frequency signals. In one example, the intermediate frequency signal may correspond to a first frequency band, and the high frequency signal may correspond to a second frequency band.

[0063] According to one embodiment, referring to the intensity (300) of the mid-band frequency signal and the intensity (310) of the high-band frequency signal corresponding to the solid line in FIG. 3A, it can be seen that the signal loss or insertion loss (IL) in the section where the two bands are adjacent is greater than the signal loss or insertion loss in other frequency bands. This can be seen as a material limitation of the inductor and capacitor-based device using ceramic as described above. In one example, referring also to FIG. 1, when the first acoustic resonator (122) and the second acoustic resonator (132) are included, as in the configuration of the diplexer (100), the signal intensity change according to the frequency of the transition frequency band appearing in the frequency separation section may appear steep. For example, when the configuration of the diplexer (100) includes a first acoustic resonator (122) and a second acoustic resonator (132), the transition bandwidth may be reduced.

[0064] According to one embodiment, referring also to FIG. 1, the cutoff frequency of the first LC filter (124) may correspond to a frequency corresponding to a point at which the output of the input first frequency signal is reduced by about 3 dB. In addition, the cutoff frequency of the second LC filter (134) may correspond to a frequency corresponding to a point at which the output of the input second frequency signal is reduced by about 3 dB. In one example, when the first acoustic resonator (122) is not included in the diplexer (100), the frequency-dependent change in the intensity (e.g., 300) of the first signal corresponding to the cutoff frequency of the first LC filter (124) may appear in a relatively gentle form, and when the first acoustic resonator (122) is included in the diplexer (100), the frequency-dependent change in the intensity (e.g., 320) of the first signal corresponding to the cutoff frequency of the first LC filter (124) may appear in a relatively rapid form. In one example, when the second acoustic resonator (132) is not included in the diplexer (100), the frequency-dependent change in the intensity of the second signal (e.g., 310) corresponding to the cutoff frequency of the second LC filter (134) may appear in a relatively gentle form, and when the second acoustic resonator (132) is included in the diplexer (100), the frequency-dependent change in the intensity of the first signal (e.g., 330) corresponding to the cutoff frequency of the second LC filter (134) may appear in a relatively rapid form.

[0065] According to one embodiment, referring also to FIG. 1, when an intermediate frequency signal (e.g., a first frequency signal) passes through a diplexer that does not include a first acoustic resonator (122), the intermediate frequency signal may correspond to the intensity (300) of the intermediate frequency signal of the solid line, and a frequency corresponding to a point where the intensity (300) of the intermediate frequency signal drops by 3 dB by the first LC filter (124) may correspond to 2.24 GHz, and a cutoff frequency of the first LC filter (124) may correspond to 2.24 GHz. Meanwhile, when the intermediate frequency signal passes through the diplexer (100) including the first acoustic resonator (122), the intermediate frequency signal may correspond to the intensity (320) of the intermediate frequency signal of the dotted line, and the slope of the intensity (e.g., 300, 320) of the intermediate frequency signal may vary depending on whether the first acoustic resonator (122) is included or not. In one example, the slope of the intensity of the frequency signal may correspond to the slope of the intensity of the frequency signal corresponding to a frequency range near the cutoff frequency. The slope of the intensity of the frequency signal may correspond to the amount of change in the intensity of the signal according to the frequency.

[0066] According to one embodiment, and referring also to FIG. 1, when a high-band frequency signal (e.g., a second frequency signal) passes through a diplexer that does not include a second acoustic resonator (132), the high-band frequency signal may correspond to the intensity (310) of the high-band frequency signal of the solid line, and the frequency corresponding to the point where the intensity (330) of the high-band frequency signal drops by 3 dB by the second LC filter (134) may correspond to 2.25 GHz, and the cutoff frequency of the second LC filter (134) may correspond to 2.25 GHz. Meanwhile, when a high-band frequency signal passes through a diplexer (100) including a second acoustic resonator (132), the high-band frequency signal may correspond to the intensity (330) of the high-band frequency signal of the dotted line, and the slope of the intensity (e.g., 310, 330) of the high-band frequency signal may vary depending on whether the second acoustic resonator (132) is included or not. In the present disclosure, the intermediate frequency signal and the high-band frequency signal are described as examples of adjacent frequency signals and do not limit a certain frequency band. For example, the intermediate frequency signal and the high-band frequency signal may correspond to a low-band frequency signal and an intermediate frequency signal. In one example, the intermediate frequency signal may correspond to a first frequency signal, and the high-band frequency signal may correspond to a second frequency signal.

[0067] According to one embodiment, the transition frequency band may correspond to a frequency section in which the intensity change of the signal according to frequency is relatively high between the frequency band that the band stop filter wants to pass and the frequency band that the band stop filter wants to block. In one example, referring to FIG. 1, when the diplexer (100) includes the first acoustic resonator (122), the transition frequency bandwidth of the intermediate frequency signal may be reduced compared to the case where the first acoustic resonator (122) is not included. In one example, when the diplexer (100) includes the second acoustic resonator (132), the transition frequency bandwidth of the high frequency signal may be reduced compared to the case where the second acoustic resonator (132) is not included. In one example, when the diplexer (100) includes a first acoustic resonator (122) and a second acoustic resonator (132), the gap between the cutoff frequency of the first LC filter (124) and the cutoff frequency of the second LC filter (134) can be reduced compared to when the diplexer (100) does not include the first acoustic resonator (122) and the second acoustic resonator (132).

[0068] According to one embodiment, the cutoff band of the first acoustic resonator (122) may be set to reduce the transition frequency bandwidth of the second LC filter (134), and the cutoff band of the second acoustic resonator (132) may be set to reduce the transition frequency bandwidth of the first LC filter (124).

[0069] According to one embodiment, the first acoustic resonator (122) may be configured to attenuate at least a portion of a signal transmitted from the antenna (110) to the first LC filter (124), and the second acoustic resonator (132) may be configured to attenuate at least a portion of a signal transmitted from the second LC filter (134) to the antenna (110).

[0070] Referring to FIGS. 1 and 3B together, the intensities of the intermediate frequency signal and the high frequency signal passing through the diplexer (100) may vary depending on the design structure of the diplexer (100). In one example, the intensity graph of the frequency signal passing through the diplexer may have a form such as a frequency-dependent signal intensity graph (340) corresponding to a diplexer that does not include a first acoustic resonator (e.g., 122) and a second acoustic resonator (e.g., 132) or a frequency-dependent signal intensity graph (350) corresponding to a diplexer (e.g., 100) that includes a first acoustic resonator (e.g., 122) and a second acoustic resonator (e.g., 132).

[0071] According to one embodiment, referring to FIG. 3A together, a frequency-dependent signal intensity graph (340) corresponding to a diplexer that does not include a first acoustic resonator (e.g., 122) and a second acoustic resonator (e.g., 132) may represent a signal intensity corresponding to -5 dB or less among the intensity (300) of the mid-band frequency signal and the intensity (310) of the high-band frequency signal of FIG. 3A. For example, the intensity (344) of the mid-band frequency signal and the intensity (342) of the high-band frequency signal of FIG. 3B may correspond to the intensity (300) of the mid-band frequency signal and the intensity (310) of the high-band frequency signal of FIG. 3A. Additionally, the intensity (354) of the intermediate frequency signal and the intensity (352) of the high frequency signal in FIG. 3b may correspond to a portion below -5 dB of the intensity (300) of the intermediate frequency signal and the intensity (310) of the high frequency signal in FIG. 3a.

[0072] According to one embodiment, referring to FIG. 3A together, a frequency-dependent signal intensity graph (350) corresponding to a diplexer (e.g., 100) including a first acoustic resonator (e.g., 122) and a second acoustic resonator (e.g., 132) may represent a signal intensity corresponding to -5 dB or less among the intensity (320) of the mid-band frequency signal and the intensity (330) of the high-band frequency signal of FIG. 3A. For example, the intensity (354) of the mid-band frequency signal and the intensity (352) of the high-band frequency signal of FIG. 3B may correspond to the intensity (320) of the mid-band frequency signal and the intensity (330) of the high-band frequency signal of FIG. 3A. Additionally, the intensity (354) of the intermediate frequency signal and the intensity (352) of the high frequency signal in FIG. 3b may correspond to a portion below -5 dB of the intensity (300) of the intermediate frequency signal and the intensity (310) of the high frequency signal in FIG. 3a.

[0073] According to one embodiment, referring to a frequency-dependent signal intensity graph (340) corresponding to a diplexer that does not include a first acoustic resonator (e.g., 122) and a second acoustic resonator (e.g., 132), the intensity of a mid-band frequency signal (344) and the intensity of a high-band frequency signal (342) may exhibit a decrease in signal intensity at a first cutoff frequency (I1) and a second cutoff frequency (I2). In one example, the first cutoff frequency (I1) may correspond to a first cutoff frequency of a first LC filter (e.g., 124), and the second cutoff frequency (I2) may correspond to a second cutoff frequency of a second LC filter (134).

[0074] According to one embodiment, referring to a frequency-dependent signal intensity graph (340) corresponding to a diplexer that does not include a first acoustic resonator (e.g., 122) and a second acoustic resonator (e.g., 132), the intensity of the intermediate frequency signal (344) and the intensity of the high frequency signal (342) may exhibit a decrease in signal intensity at a first cutoff frequency (I1) and a second cutoff frequency (I2). For example, the first cutoff frequency (I1) may correspond to 2050 MHz. For the first cutoff frequency (I1), the intensity of the intermediate frequency signal (344) may have an intensity of -0.1432 dB, and the intensity of the high frequency signal (342) may have an intensity of -45.07 dB. For example, the second cutoff frequency (I2) may correspond to 2500 MHz. For the second cutoff frequency (I2), the intensity of the mid-band frequency signal (344) can have an intensity of -58.94 dB, and the intensity of the high-band frequency signal (342) can have an intensity of -0.1354 dB.

[0075] According to one embodiment, referring to a frequency-dependent signal intensity graph (350) corresponding to a diplexer (e.g., 100) including a first acoustic resonator (e.g., 122) and a second acoustic resonator (e.g., 132), the intensity of an intermediate frequency signal (354) and the intensity of a high frequency signal (352) may exhibit a decrease in signal intensity at a cutoff frequency (f2) of the first LC filter (e.g., 124) and a cutoff frequency (f3) of the second LC filter (e.g., 134). In one example, the intensity of the intermediate frequency signal (354) may be blocked at a center frequency (f3') of a frequency band that the first acoustic resonator (e.g., 122) intends to block due to the first acoustic resonator (e.g., 122). Additionally, the intensity (352) of the high-frequency signal may be blocked at the center frequency (f2') of the frequency band that the second acoustic resonator (e.g., 132) is intended to block due to the second acoustic resonator (e.g., 132). In one example, the cutoff frequency (f2) of the first LC filter (e.g., 124) may correspond to the first designated frequency (f2). In one example, the cutoff frequency (f3) of the second LC filter (e.g., 134) may correspond to the second designated frequency (f3). According to one embodiment, referring to a frequency-dependent signal intensity graph (350) corresponding to a diplexer (e.g., 100) including a first acoustic resonator (e.g., 122) and a second acoustic resonator (e.g., 132), the cutoff frequency (f2) may correspond to the cutoff frequency of the first LC filter (e.g., 124). For example, the cutoff frequency (f2) may correspond to a frequency corresponding to a point where the intensity (354) of the mid-band frequency signal is reduced by about 3 dB. In one example, the cutoff frequency (f3) may correspond to the cutoff frequency of the second LC filter (e.g., 134). For example, the cutoff frequency (f3) may correspond to a frequency at which the intensity (352) of the high-band frequency signal is reduced by about 3 dB.

[0076] In one embodiment, due to the first acoustic resonator (e.g., 122), the mid-band frequency signal may be blocked at a frequency (f3'). In one example, the mid-band frequency signal may correspond to an open state based on a Smith chart at the frequency (f3'). In one example, due to the second acoustic resonator (e.g., 132), the high-band frequency signal may be blocked at a frequency (f2'). In one example, the high-band frequency signal may correspond to an open state based on a Smith chart at the frequency (f2').

[0077] In one embodiment, the diplexer (e.g., 100) may be set such that the cutoff frequency (f2) corresponds to 2150 MHz and the cutoff frequency (f3) corresponds to 2350 MHz. In one example, the diplexer (e.g., 100) may be set such that the frequency difference between the cutoff frequency (f2) and the cutoff frequency (f3) corresponds to 200 MHz. The frequencies corresponding to the cutoff frequency (f2) and the cutoff frequency (f3) according to the present example are only examples and are not limited to specific frequencies, and based on the configuration of the first filter circuit (e.g., 120) and the second filter circuit (e.g., 130) of the diplexer (e.g., 100), the cutoff frequency (f2) and the cutoff frequency (f3) may have frequencies different from the frequencies exemplified.

[0078] In one embodiment, the diplexer (e.g., 100) can optimize signal discrimination characteristics by setting the frequency (f2') and the frequency (f3') to be adjacent to the cutoff frequency (f2) and the cutoff frequency (f3). In one example, the cutoff frequency (f2) may be less than or equal to the frequency (f2'). In one example, the cutoff frequency (f3) may be greater than or equal to the frequency (f3'). For example, referring to a frequency-dependent signal intensity graph (350) corresponding to a diplexer including a first acoustic resonator (e.g., 122) and a second acoustic resonator (e.g., 132), a cutoff frequency (f2) of the first LC filter (e.g., 124), a center frequency (f2') of a frequency band that the second acoustic resonator (e.g., 132) wants to block, a center frequency (f3') of a frequency band that the first acoustic resonator (e.g., 122) wants to block, and a cutoff frequency (f3) of the second LC filter (e.g., 134) may satisfy a relationship of f2 <= f2' < f3' <= f3. In one example, the diplexer (e.g., 100) can be set such that the frequency (f2') and the cutoff frequency (f2) are adjacent, and the frequency (f3') and the cutoff frequency (f3) are adjacent. In one example, the diplexer (e.g., 100) can be set such that the frequency difference between the cutoff frequency (f2) and the cutoff frequency (f3) corresponds to 100 MHz. For example, the cutoff frequency (f2) can correspond to 2200 MHz. For the cutoff frequency (f2), the intensity (354) of the mid-band frequency signal can have an intensity of -0.1246 dB, and the intensity (352) of the high-band frequency signal can have an intensity of -38.93 dB. For example, the cutoff frequency (f3) can correspond to 2300 MHz. For the cutoff frequency (f3), the intensity of the mid-band frequency signal (354) can have an intensity of -44.52 dB, and the intensity of the high-band frequency signal (352) can have an intensity of -0.008371 dB.

[0079] According to one embodiment, a diplexer that does not include a first acoustic resonator (e.g., 122) and a second acoustic resonator (e.g., 132) may have a configuration that includes an inductor and a capacitor. At this time, a frequency bandwidth value of a frequency to be blocked compared to a center frequency value of a frequency to be blocked by the diplexer may correspond to a result value of (I2 - I1) / ((I1 + I2) / 2). For example, a diplexer that does not include a first acoustic resonator (e.g., 122) and a second acoustic resonator (e.g., 132) may correspond to a value of about 19% by the formula (2500 - 2050) / ((2050 + 2500) / 2) = 0.1978.

[0080] According to one embodiment, a diplexer including a first acoustic resonator (e.g., 122) and a second acoustic resonator (e.g., 132) may have a configuration including acoustic resonators (e.g., 122, 132) in addition to an inductor and a capacitor. At this time, a frequency bandwidth value of a frequency to be blocked compared to a center frequency value of a frequency to be blocked by the diplexer may correspond to a result value of (f3 - f2) / ((f2 + f3) / 2). For example, a diplexer including a first acoustic resonator (e.g., 122) and a second acoustic resonator (e.g., 132) may correspond to a value of about 4% by the formula (2300 - 2200) / ((2200 + 2300) / 2) = 0.0444.

[0081] According to one embodiment, a diplexer that does not include a first acoustic resonator (e.g., 122) and a second acoustic resonator (e.g., 132) may have an adjacent frequency discrimination characteristic value of about 20%. In addition, when a ceramic pattern having a high permittivity is used, an adjacent frequency discrimination characteristic value of about 15% may be achieved. In one example, a lower % of the adjacent frequency discrimination characteristic value of the diplexer may correspond to a diplexer that separates adjacent frequency signals with less insertion loss in a narrower band.

[0082] According to one embodiment, a diplexer including a first acoustic resonator (e.g., 122) and a second acoustic resonator (e.g., 132) may have a lower adjacent frequency discrimination characteristic value compared to a diplexer not including the first acoustic resonator (e.g., 122) and the second acoustic resonator (e.g., 132). In one example, a diplexer including the first acoustic resonator (e.g., 122) and the second acoustic resonator (e.g., 132) may have an adjacent frequency discrimination characteristic value of less than 15%. For example, a diplexer not including the first acoustic resonator (e.g., 122) and the second acoustic resonator (e.g., 132) may have an adjacent frequency discrimination characteristic value of about 4%. In one example, a diplexer including a first acoustic resonator (e.g., 122) and a second acoustic resonator (e.g., 132) can separate adjacent frequency signals in a narrower band with less insertion loss than a diplexer that simply uses inductors and capacitors to separate adjacent frequencies.

[0083] Figures 4a to 4c are drawings showing the configuration of a diplexer according to one embodiment.

[0084] Referring to FIG. 4A, the diplexer (400) may include a first filter circuit (420), a second filter circuit (430), a first terminal (401) connecting the first filter circuit (420), the second filter circuit (430), and the antenna (110), a second terminal (403) to which a first RF signal is applied, and a third terminal (405) to which a second RF signal is applied.

[0085] In one embodiment, the diplexer (400) may include radio frequency (RF) components. For example, the first filter circuit (420) of the diplexer (400) may include an inductor (e.g., 421, 422, 426, 428) or a capacitor (e.g., 427, 429). For example, the second filter circuit (430) of the diplexer (400) may include an inductor (e.g., 431, 437, 438) or a capacitor (e.g., 432, 433, 435, 439). In one example, the configurations of the diplexer (400) described below with reference to FIG. 4A are merely examples, and embodiments of the present disclosure are not limited thereto. For example, the diplexer (400) may not include at least some of the configurations (e.g., 422, 432) illustrated in FIG. 4a. For example, the diplexer (400) may further include other configurations (e.g., additional inductors or additional capacitors) in addition to the configurations illustrated in FIG. 4a.

[0086] According to one embodiment, referring also to FIG. 1, the diplexer (400) of FIG. 4A may correspond to the diplexer (100) of FIG. 1. In one example, the first filter circuit (420), the second filter circuit (430), and the first terminal (401) connecting the antenna (110) of FIG. 4A, the second terminal (403) to which the first RF signal is applied, and the third terminal (405) to which the second RF signal is applied may correspond to the first terminal (101), the second terminal (103), and the third terminal (105) of FIG. 1.

[0087] According to one embodiment, when frequency separation is performed in a section where two bands are adjacent using a diplexer (400) based on ceramic elements or inductors or capacitor elements, a trade-off may occur between the band rejection and insertion loss for the relative frequencies of the first filter circuit (420) and the second filter circuit (430). For example, depending on the configuration of the front-end module (200), the loss in the separated boundary band may increase by about 4 to 5 dB. In one example, the first terminal (401) connecting the first filter circuit (420), the second filter circuit (430), and the antenna (110) may correspond to the first terminal (101) of FIG. 1.

[0088] In one embodiment, when the loss is increased to improve the band separation, the radiation performance of the electronic device (10) may be reduced due to the loss of transmission power. For example, the output of the power amplifier of the transmission path may be increased to compensate for the loss of transmission power. In this case, the power loss of the electronic device (10) may be increased, and the heat generation of the terminal may also be increased. In one example, when the band rejection characteristic for the frequency band for frequency separation is reduced to reduce the loss power, interference may occur between the two frequency signals. For example, when signals of a first frequency and a second frequency are simultaneously transmitted from the electronic device (10), the leakage component of the first frequency signal component may cause interference with the second frequency signal, or the leakage component of the second frequency signal component may cause interference with the first frequency signal. In this case, the reception sensitivity of the receiver may be reduced due to the interference. When the transmission power of the terminal is increased to compensate for the reception sensitivity, the power loss and heat generation of the terminal may be increased.

[0089] According to one embodiment, examples of the present disclosure may use a vans-stop filter (e.g., an acoustic resonator) in at least a portion (e.g., 425) of a first filter circuit (420) and at least a portion (e.g., 435) of a second filter circuit (430) for a resonator (e.g., a series / parallel notch) of a filter such as an inductor including a ceramic element and a diplexer (400) including a capacitor, while simultaneously connecting a first terminal (401) between the two vans-stop filters with a path toward the antenna (110) to secure adjacent band rejection characteristics, thereby reducing insertion loss and improving band rejection characteristics (e.g., band isolation). In one example, referring also to FIG. 1, the first filter circuit (420) of FIG. 4A may correspond to the first filter circuit (120) of FIG. 1. In one example, the second filter circuit (430) of FIG. 4a may correspond to the second filter circuit (130) of FIG. 1.

[0090] In one example, the acoustic resonator may include a thin film bulk acoustic resonator (TFBAR) or a film bulk acoustic resonator (FBAR). For example, the acoustic resonator may include a piezoelectric element positioned between two film layers.

[0091] According to one embodiment, the first filter circuit (420) may correspond to a circuit that passes a signal having a frequency lower than a set cutoff frequency. In one example, referring also to FIG. 1, the first filter circuit (420) may correspond to the first filter circuit (120), and other circuit configurations may be added or replaced in at least a portion (425) of the first filter circuit (420). For example, a notch filter or a band rejection filter may be added in at least a portion (425) of the first filter circuit (420).

[0092] According to one embodiment, the second filter circuit (430) may correspond to a circuit that passes a signal having a frequency higher than a set cutoff frequency. In one example, referring also to FIG. 1, the second filter circuit (430) may correspond to the second filter circuit (130) of FIG. 1, and other circuit configurations may be added or replaced in at least a portion (435) of the second filter circuit (430). For example, a notch filter or a band rejection filter may be added in at least a portion (435) of the second filter circuit (430).

[0093] According to one embodiment, the first acoustic resonator (122) and the second acoustic resonator (132) may include acoustic resonators. Referring to FIG. 4B, the diplexer (450) may include a first band stop filter (460), a second band stop filter (470), a low pass filter (480), and a high pass filter (490), and further, the diplexer (450) may include a first terminal (401) connected to the antenna (110), the first band stop filter (460), and the second band stop filter (470), a second terminal (403) to which a first RF signal is applied, and a third terminal (405) to which a second RF signal is applied.

[0094] According to one embodiment, referring to FIG. 4A together, the first band stop filter (460) and the low pass filter (480) of FIG. 4B may correspond to the configuration included in the first filter circuit (420) of FIG. 4A. For example, the first band stop filter (460) of FIG. 4B may correspond to at least a portion (e.g., 425) of the first filter circuit (420) of FIG. 4A. In one example, the second band stop filter (470) and the high pass filter (490) of FIG. 4B may correspond to the second filter circuit (430) of FIG. 4A. For example, the second band stop filter (470) of FIG. 4B may correspond to at least a portion (e.g., 435) of the second filter circuit (430) of FIG. 4A. In one example, the first band stop filter (460) or the second band stop filter (470) may correspond to an acoustic resonator. In one example, the diplexer (450) may improve the insertion loss of the pass band while enhancing the band rejection characteristics of the frequency band to be separated using the acoustic resonator. In one example, the band stop filter may correspond to a notch filter.

[0095] In one embodiment, the notch filter portion of a conventional diplexer may be formed of a high Q acoustic filter. This can improve the band rejection characteristics of a frequency band that needs to be separated using an acoustic filter (e.g., an acoustic resonator) while improving the insertion loss of the pass band.

[0096] To do so, the terminal side of the path passing through the low pass filter (480) has a high band rejection characteristic at the lowest frequency (f2') in the passband of the high pass filter (490), and when the corresponding notch filter (e.g., the first band stop filter (460)) is viewed from the first terminal (401), it appears as open on the Smith chart (when the low pass filter (480) is viewed from the first terminal (401) with respect to the frequency (f2'), it appears as a substantially open state (e.g., has an impedance value higher than the critical impedance with respect to the frequency (f2'))), so that the signal is transmitted from the first terminal (401) toward the high pass filter (490) and not transmitted toward the low pass filter (480).

[0097] On the other hand, an acoustic notch that blocks the band of the highest frequency (f3') of the low pass filter (480) is positioned between the first terminal (401) and the path passing through the high pass filter (490), and this is displayed as Open on the Smith chart at the corresponding frequency. Thus, an acoustic resonator notch can be positioned as shown in FIG. 4b so that the middle high pass filter (490) portion through which the signal is transmitted between the terminal and the low pass filter (480) is not visible due to the notch (e.g., the second band stop filter (470)). In this case, compared to the existing low pass filter and high pass filter combination, it can have the characteristics of a high Q acoustic filter. For example, it is expected that low-band and mid-band signals or mid-band and high-band signals can be separated with lower loss. In one example, the center frequency of the frequency band stopped by the first band stop filter (460) may correspond to (f3'), and the center frequency of the frequency band stopped by the second band stop filter (470) may correspond to (f2').

[0098] According to one embodiment, referring also to FIG. 1, the first band stop filter (460) of FIG. 4B may correspond to the first acoustic resonator (122) of FIG. 1. In one example, the first band stop filter (460) may be located between the first terminal (401) and the low pass filter (480). In one example, the first band stop filter (460) may abruptly reduce the degree to which the intensity of the first frequency signal that the low pass filter (480) passes is reduced by the low pass filter (480). For example, the first band stop filter (460) may reduce a transition frequency bandwidth of the first frequency signal.

[0099] According to one embodiment, with reference to FIG. 1, the second band stop filter (470) of FIG. 4B may correspond to the second acoustic resonator (132) of FIG. 1. In one example, the second band stop filter (470) may be located between the first terminal (401) and the high pass filter (490). In one example, the second band stop filter (470) may abruptly reduce the degree to which the intensity of the second frequency signal that the high pass filter (490) passes is reduced by the high pass filter (490). For example, the second band stop filter (470) may reduce the transition frequency bandwidth of the second frequency signal.

[0100] According to one embodiment, among the configurations of the diplexer (450), the transition frequency bandwidth of the first frequency signal and / or the second frequency signal can be reduced by the first band stop filter (460) positioned between the low pass filter (480) and the first terminal (401), and / or the second band stop filter (470) positioned between the high pass filter (490) and the first terminal (401), thereby improving the band rejection characteristic and simultaneously alleviating the insertion loss.

[0101] Referring to FIG. 4C, the diplexer (450) may include a first terminal (401) connected to a first band stop filter (460), a second band stop filter (470), a low pass filter (480), a high pass filter (490), an antenna (110), the first band stop filter (460), and the second band stop filter (470), a second terminal (403) to which a first RF signal is applied, and / or a third terminal (405) to which a second RF signal is applied. For example, the diplexer (450) may include a first matching element (465) connected between the first terminal (401) and the first band stop filter (460), and a second matching element (475) connected between the first terminal (401) and the second band stop filter (470).

[0102] According to one embodiment, the first matching element (465) can change the frequency pass characteristic of the first band stop filter (460) by varying the matching of the first band stop filter (460). For example, the first matching element (465) can reduce the loss of signals passing through the first band stop filter (460) through impedance matching of the first band stop filter (460) and increase the transmission efficiency of a target frequency (e.g., a low-pass frequency or an intermediate-pass frequency) signal. In one example, referring also to FIG. 4A, the diplexer (400) can further include a matching element (e.g., 465). In one example, the matching element (e.g., 465) included in the diplexer (400) can change the frequency pass characteristic of the first filter circuit (420) by varying the matching of the first filter circuit (420) of FIG. 4A. In one example, the first matching element (465) may include at least one inductor and / or capacitor.

[0103] According to one embodiment, the second matching element (475) can change the frequency pass characteristic of the second band stop filter (470) by varying the matching of the second band stop filter (470). For example, the second matching element (475) can reduce the loss of signals passing through the second band stop filter (470) through impedance matching of the second band stop filter (470) and increase the transmission efficiency of a target frequency (e.g., an intermediate frequency or a high frequency) signal. In one example, referring also to FIG. 4A, the diplexer (400) can further include a matching element (e.g., 475). In one example, the matching element (e.g., 475) included in the diplexer (400) can change the frequency pass characteristic of the second filter circuit (430) by varying the matching of the second filter circuit (430) of FIG. 4A. In one example, the second matching element (475) may include at least one capacitor and / or inductor.

[0104] FIG. 5 illustrates the frequency bands of signals transmitted and received by an electronic device according to one embodiment.

[0105] Referring to FIG. 5, the frequency bands of signals transmitted and received by the electronic device may include a first frequency band (500), a second frequency band (520), or a band stop band (510) including a band in which band rejection characteristics are exhibited by the first band stop filter (460) and the second band stop filter (470). In one example, the frequency interval (505) of the frequency (f2) and the frequency (f2') of FIG. 5 may be greater than or equal to 0. For example, the frequency (f2') may be greater than or equal to the frequency (f2). In one example, the frequency interval (515) of the frequency (f3') and the frequency (f3) of FIG. 5 may be greater than or equal to 0. For example, the frequency (f3) may be greater than or equal to the frequency (f3').

[0106] According to one embodiment, referring to FIG. 3b together, the frequency (f2) of FIG. 5 may correspond to the cutoff frequency (f2) of the first LC filter (e.g., 124), the frequency (f2') of FIG. 5 may correspond to the center frequency (f2') of the frequency band that the second acoustic resonator (e.g., 132) intends to block, the frequency (f3') of FIG. 5 may correspond to the center frequency (f3') of the frequency band that the first acoustic resonator (e.g., 122) intends to block, and the frequency (f3) of FIG. 5 may correspond to the cutoff frequency (f3) of the second LC filter (e.g., 134). In one example, the center frequency (f2') of the frequency band that the second acoustic resonator (e.g., 132) wants to block may correspond to the center frequency (f2') of the frequency band that the second band stop filter (e.g., 470) wants to block, and the center frequency (f3') of the frequency band that the first acoustic resonator (e.g., 122) wants to block may correspond to the center frequency (f3') of the frequency band that the first band stop filter (460) wants to block.

[0107] According to one embodiment, the present disclosure is expected to have the effect of securing adjacent band rejection characteristics of adjacent frequencies with an acoustic resonator-based filter so as to exhibit improved pass characteristics and band rejection characteristics when an antenna must simultaneously support signals of different bands and / or different characteristics, for example, in cases of ultra-wideband (UWB) and wireless fidelity (WiFi), Sub6 and UWB / 5G (five generation) Wi-Fi, separation between mid-band signals and high-band signals, and maintaining performance with a low-pass filter and a high-pass filter based on an inductor including a ceramic element and a capacitor for a band with a relatively wide frequency interval.

[0108] According to one embodiment, and referring to FIG. 4B together, the first frequency band (500) may correspond to a frequency band of a first frequency signal to be passed by the low pass filter (480). In one example, the first frequency band (500) may include the lowest frequency band among the frequency bands to be passed by the high pass filter (490). In one example, the highest frequency (f2) of the first frequency band (500) may correspond to a frequency adjacent to a center frequency (f2') of a frequency band to be blocked by the second band stop filter (470). In one example, the highest frequency (f2) of the first frequency band (500) may be lower than the center frequency (f2') of the frequency band to be blocked by the second band stop filter (470).

[0109] According to one embodiment, the first frequency band (500) may correspond to a frequency band of a first frequency signal to be passed by a first band-pass filter or low-pass filter (e.g., 480). In one example, the frequency (f1) may correspond to a frequency lower than the frequency (f2), and the first band-pass filter may correspond to a band-pass filter for passing a frequency band corresponding to the frequency (f1) to the frequency (f2).

[0110] According to one embodiment, the band stop band (510) may include a frequency band that the first band stop filter (460) and / or the second band stop filter (470) intend to block. In one example, the lowest frequency (f2') of the band stop band (510) may correspond to the center frequency of the frequency band that the second band stop filter (470) intends to block. Additionally, the highest frequency (f3') of the band stop band (510) may correspond to the center frequency of the frequency band that the first band stop filter (460) intends to block.

[0111] According to one embodiment, the second frequency band (520) may correspond to a frequency band of a second frequency signal to be passed by the high pass filter (490). In one example, the second frequency band (520) may include the highest frequency band among the frequency bands to be passed by the low pass filter (480). In one example, the lowest frequency (f3) of the second frequency band (520) may correspond to a frequency adjacent to a center frequency (f3') of a frequency band to be blocked by the first band stop filter (460). In one example, the lowest frequency (f3) of the second frequency band (520) may be higher than the center frequency (f3') of the frequency band to be blocked by the first band stop filter (460).

[0112] According to one embodiment, the second frequency band (520) may correspond to a frequency band of a second frequency signal to be passed by a second band-pass filter or high-pass filter (e.g., 490). In one example, the frequency (f4) may correspond to a frequency higher than the frequency (f3), and the second band-pass filter may correspond to a band-pass filter for passing a frequency band corresponding to the frequency (f3) to the frequency (f4).

[0113] In one embodiment, the frequency band corresponding to the frequency (f2) to the frequency (f3) may correspond to a fifth frequency band. In one example, the fifth frequency band may correspond to a frequency band that the diplexer (e.g., 100) intends to block. For example, the diplexer (e.g., 100) may set the frequency (f2) as a cutoff frequency of a low-pass filter and may set the frequency (f3) as a cutoff frequency of a high-pass filter. In this case, the frequency band corresponding to the frequency (f2) to the frequency (f3) may correspond to a fifth frequency band, and may correspond to a frequency band in which the intensity of a signal passing through the diplexer (e.g., 100) is reduced compared to the frequency band corresponding to the frequency (f1) to the frequency (f2) or the frequency band corresponding to the frequency (f3) to the frequency (f4).

[0114] According to one embodiment, the first frequency band (500), the band stop band (510), and the second frequency band (520) may be adjacent to each other or may include common frequency bands in at least some areas.

[0115] According to one embodiment, the first band stop filter may block a third frequency band, the second band stop filter may block a fourth frequency band, and the third frequency band may correspond to a frequency band higher than the fourth frequency band. In one example, the third frequency band and the fourth frequency band may be included in the band stop band (510).

[0116] According to one embodiment, the third frequency band may correspond to a frequency band adjacent to the lowest frequency (f3) of the second frequency band (520) and lower than the lowest frequency (f3) of the second frequency band (520), and the fourth frequency band may correspond to a frequency band adjacent to the highest frequency (f2) of the first frequency band (500) and higher than the highest frequency (f2) of the first frequency band (500).

[0117] According to one embodiment, the third frequency band and the fourth frequency band may be adjacent to each other or may include common frequency bands in at least some areas.

[0118] According to one embodiment, the third frequency band may be adjacent to the second designated frequency (f3) and lower than the second designated frequency (f3), and the fourth frequency band may be adjacent to the first designated frequency (f2) and higher than the first designated frequency (f2). The center frequency (f3') of the third frequency band according to one embodiment may be higher than the center frequency (f2') of the fourth frequency band.

[0119] A diplexer (e.g., 100) according to one embodiment is configured such that a fifth frequency band corresponding to a first designated frequency (f2) and a second designated frequency (f3) is not passed, and a bandwidth value of the fifth frequency band can be set to be about 10% or less relative to a center frequency value of the fifth frequency band.

[0120] According to one embodiment, each of the first designated frequency (f2) and the second designated frequency (f3) may be higher than about 2 GHz. According to one embodiment, the difference between the first designated frequency (f2) and the second designated frequency (f3) may be about 200 MHz or less.

[0121] According to one embodiment, a first LC filter (e.g., 124) is set not to pass a frequency band lower than a third designated frequency (f1), and the third designated frequency (f1) may be lower than a first designated frequency (f2). According to one embodiment, a second LC filter (134) is set not to pass a frequency band higher than a fourth designated frequency (f4), and the fourth designated frequency (f4) may be higher than a second designated frequency (f3).

[0122] FIG. 6 is a block diagram of an electronic device within a network environment according to one embodiment.

[0123] Referring to FIG. 6, FIG. 6 is a block diagram of an electronic device (601) within a network environment (600) according to various embodiments. Referring to FIG. 6, in the network environment (600), the electronic device (601) may communicate with the electronic device (602) via a first network (698) (e.g., a short-range wireless communication network), or may communicate with at least one of the electronic device (604) or the server (608) via a second network (699) (e.g., a long-range wireless communication network). In one embodiment, the electronic device (601) may communicate with the electronic device (604) via the server (608). According to one embodiment, the electronic device (601) may include a processor (620), a memory (630), an input module (650), an audio output module (655), a display module (660), an audio module (670), a sensor module (676), an interface (677), a connection terminal (678), a haptic module (679), a camera module (680), a power management module (688), a battery (689), a communication module (690), a subscriber identification module (696), or an antenna module (697). In some embodiments, the electronic device (601) may omit at least one of these components (e.g., the connection terminal (678)), or may have one or more other components added. In some embodiments, some of these components (e.g., the sensor module (676), the camera module (680), or the antenna module (697)) may be integrated into one component (e.g., the display module (660)).

[0124] The processor (620) may, for example, execute software (e.g., a program (640)) to control at least one other component (e.g., a hardware or software component) of the electronic device (601) connected to the processor (620) and perform various data processing or operations. According to one embodiment, as at least a part of the data processing or operations, the processor (620) may store commands or data received from other components (e.g., a sensor module (676) or a communication module (690)) in a volatile memory (632), process the commands or data stored in the volatile memory (632), and store result data in a non-volatile memory (634). According to one embodiment, the processor (620) may include a main processor (621) (e.g., a central processing unit or an application processor) or an auxiliary processor (623) (e.g., a graphics processing unit, a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor) that can operate independently or together with the main processor (621). For example, when the electronic device (601) includes the main processor (621) and the auxiliary processor (623), the auxiliary processor (623) may be configured to use less power than the main processor (621) or to be specialized for a given function. The auxiliary processor (623) may be implemented separately from the main processor (621) or as a part thereof.

[0125] The auxiliary processor (623) may control at least a portion of functions or states associated with at least one component (e.g., a display module (660), a sensor module (676), or a communication module (690)) of the electronic device (601), for example, on behalf of the main processor (621) while the main processor (621) is in an inactive (e.g., sleep) state, or together with the main processor (621) while the main processor (621) is in an active (e.g., application execution) state. In one embodiment, the auxiliary processor (623) (e.g., an image signal processor or a communication processor) may be implemented as a part of another functionally related component (e.g., a camera module (680) or a communication module (690)). In one embodiment, the auxiliary processor (623) (e.g., a neural network processing unit) may include a hardware structure specialized for processing artificial intelligence models. The artificial intelligence models may be generated through machine learning. This learning can be performed, for example, on the electronic device (601) itself where the artificial intelligence model is executed, or can be performed through a separate server (e.g., server (608)). The learning algorithm can include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but is not limited to the examples described above. The artificial intelligence model can include multiple artificial neural network layers.The artificial neural network may be one of a deep neural network (DNN), a convolutional neural network (CNN), a recurrent neural network (RNN), a restricted Boltzmann machine (RBM), a deep belief network (DBN), a bidirectional recurrent deep neural network (BRDNN), a deep Q-network, or a combination of two or more of the above, but is not limited to the examples described above. In addition to, or alternatively to, a hardware structure, an artificial intelligence model may include a software structure.

[0126] The memory (630) can store various data used by at least one component (e.g., the processor (620) or the sensor module (676)) of the electronic device (601). The data can include, for example, software (e.g., the program (640)) and input data or output data for commands related thereto. The memory (630) can include a volatile memory (632) or a non-volatile memory (634).

[0127] The program (640) may be stored as software in the memory (630) and may include, for example, an operating system (642), middleware (644), or an application (646).

[0128] The input module (650) can receive commands or data to be used in a component of the electronic device (601) (e.g., a processor (620)) from an external source (e.g., a user) of the electronic device (601). The input module (650) can include, for example, a microphone, a mouse, a keyboard, a key (e.g., a button), or a digital pen (e.g., a stylus pen).

[0129] The audio output module (655) can output audio signals to the outside of the electronic device (601). The audio output module (655) can include, for example, a speaker or a receiver. The speaker can be used for general purposes, such as multimedia playback or recording playback. The receiver can be used to receive incoming calls. In one embodiment, the receiver can be implemented separately from the speaker or as part of the speaker.

[0130] The display module (660) can visually provide information to an external party (e.g., a user) of the electronic device (601). The display module (660) may include, for example, a display, a holographic device, or a projector and a control circuit for controlling the device. In one embodiment, the display module (660) may include a touch sensor configured to detect a touch, or a pressure sensor configured to measure the intensity of a force generated by the touch.

[0131] The audio module (670) can convert sound into an electrical signal, or vice versa, convert an electrical signal into sound. According to one embodiment, the audio module (670) can acquire sound through the input module (650), output sound through the sound output module (655), or an external electronic device (e.g., electronic device (602)) (e.g., speaker or headphone) directly or wirelessly connected to the electronic device (601).

[0132] The sensor module (676) can detect the operating status (e.g., power or temperature) of the electronic device (601) or the external environmental status (e.g., user status) and generate an electrical signal or data value corresponding to the detected status. According to one embodiment, the sensor module (676) can include, for example, a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

[0133] The interface (677) may support one or more designated protocols that may be used to directly or wirelessly connect the electronic device (601) with an external electronic device (e.g., the electronic device (602)). In one embodiment, the interface (677) may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

[0134] The connection terminal (678) may include a connector through which the electronic device (601) may be physically connected to an external electronic device (e.g., the electronic device (602)). In one embodiment, the connection terminal (678) may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).

[0135] The haptic module (679) can convert electrical signals into mechanical stimuli (e.g., vibration or movement) or electrical stimuli that a user can perceive through tactile or kinesthetic sensations. According to one embodiment, the haptic module (679) can include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

[0136] The camera module (680) can capture still images and videos. According to one embodiment, the camera module (680) may include one or more lenses, image sensors, image signal processors, or flashes.

[0137] The power management module (688) can manage the power supplied to the electronic device (601). According to one embodiment, the power management module (688) can be implemented as, for example, at least a part of a power management integrated circuit (PMIC).

[0138] A battery (689) may power at least one component of the electronic device (601). In one embodiment, the battery (689) may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0139] The communication module (690) may support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device (601) and an external electronic device (e.g., electronic device (602), electronic device (604), or server (608)), and the performance of communication through the established communication channel. The communication module (690) may operate independently from the processor (620) (e.g., application processor) and may include one or more communication processors that support direct (e.g., wired) communication or wireless communication. According to one embodiment, the communication module (690) may include a wireless communication module (692) (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module (694) (e.g., a local area network (LAN) communication module, or a power line communication module). Any of these communication modules may communicate with an external electronic device (604) via a first network (698) (e.g., a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network (699) (e.g., a long-range communication network such as a legacy cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or WAN)). These various types of communication modules may be integrated into a single component (e.g., a single chip) or implemented as multiple separate components (e.g., multiple chips). The wireless communication module (692) may use subscriber information (e.g., an international mobile subscriber identity (IMSI)) stored in the subscriber identification module (696) to verify or authenticate the electronic device (601) within a communication network such as the first network (698) or the second network (699).

[0140] The wireless communication module (692) can support 5G networks and next-generation communication technologies following the 4G network, such as NR access technology (new radio access technology). The NR access technology can support high-speed transmission of high-capacity data (eMBB (enhanced mobile broadband)), minimization of terminal power and connection of multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency (URLLC (ultra-reliable and low-latency communications)). The wireless communication module (692) can support, for example, a high-frequency band (e.g., mmWave band) to achieve a high data transmission rate. The wireless communication module (692) may support various technologies for securing performance in a high-frequency band, such as beamforming, massive multiple-input and multiple-output (MIMO), full dimensional MIMO (FD-MIMO), array antenna, analog beam-forming, or large scale antenna. The wireless communication module (692) may support various requirements specified in the electronic device (601), an external electronic device (e.g., the electronic device (604)), or a network system (e.g., the second network (699)). According to one embodiment, the wireless communication module (692) may support a peak data rate (e.g., 20 Gbps or more) for eMBB realization, a loss coverage (e.g., 164 dB or less) for mMTC realization, or a U-plane latency (e.g., 0.5 ms or less for downlink (DL) and uplink (UL), or 1 ms or less for round trip) for URLLC realization.

[0141] The antenna module (697) can transmit or receive signals or power to or from an external device (e.g., an external electronic device). In one embodiment, the antenna module (697) may include an antenna including a radiator formed of a conductor or a conductive pattern formed on a substrate (e.g., a PCB). In one embodiment, the antenna module (697) may include a plurality of antennas (e.g., an array antenna). In this case, at least one antenna suitable for a communication method used in a communication network, such as the first network (698) or the second network (699), may be selected from the plurality of antennas, for example, by the communication module (690). A signal or power may be transmitted or received between the communication module (690) and the external electronic device via the at least one selected antenna. In some embodiments, in addition to the radiator, another component (e.g., a radio frequency integrated circuit (RFIC)) may be additionally formed as a part of the antenna module (697).

[0142] According to various embodiments, the antenna module (697) may form a mmWave antenna module. In one embodiment, the mmWave antenna module may include a printed circuit board, an RFIC disposed on or adjacent a first side (e.g., a bottom side) of the printed circuit board and capable of supporting a designated high-frequency band (e.g., a mmWave band), and a plurality of antennas (e.g., an array antenna) disposed on or adjacent a second side (e.g., a top side or a side side) of the printed circuit board and capable of transmitting or receiving signals in the designated high-frequency band.

[0143] At least some of the above components can be interconnected and exchange signals (e.g., commands or data) with each other via a communication method between peripheral devices (e.g., a bus, GPIO (general purpose input and output), SPI (serial peripheral interface), or MIPI (mobile industry processor interface)).

[0144] According to one embodiment, commands or data may be transmitted or received between the electronic device (601) and an external electronic device (604) via a server (608) connected to a second network (699). Each of the external electronic devices (602 or 604) may be the same or a different type of device as the electronic device (601). According to one embodiment, all or part of the operations executed in the electronic device (601) may be executed in one or more of the external electronic devices (602, 604, or 608). For example, when the electronic device (601) is to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device (601) may, instead of or in addition to executing the function or service itself, request one or more external electronic devices to perform the function or at least part of the service. One or more external electronic devices that receive the request may execute at least a portion of the requested function or service, or an additional function or service related to the request, and transmit the result of the execution to the electronic device (601). The electronic device (601) may process the result as is or additionally and provide it as at least a portion of a response to the request. For this purpose, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used, for example. The electronic device (601) may provide an ultra-low latency service by using distributed computing or mobile edge computing, for example. In another embodiment, the external electronic device (604) may include an Internet of Things (IoT) device. The server (608) may be an intelligent server utilizing machine learning and / or a neural network. According to one embodiment, the external electronic device (604) or the server (608) may be included in the second network (699).The electronic device (601) can be applied to intelligent services (e.g., smart home, smart city, smart car, or healthcare) based on 5G communication technology and IoT-related technology.

[0145] Electronic devices according to the various embodiments disclosed in this document may take various forms. Electronic devices may include, for example, portable communication devices (e.g., smartphones), computer devices, portable multimedia devices, portable medical devices, cameras, wearable devices, or home appliances. Electronic devices according to the embodiments of this document are not limited to the aforementioned devices.

[0146] The various embodiments of this document and the terminology used therein are not intended to limit the technical features described in this document to specific embodiments, but should be understood to include various modifications, equivalents, or substitutes of the embodiments. In connection with the description of the drawings, similar reference numerals may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of the items, unless the context clearly indicates otherwise. In this document, each of the phrases "A or B", "at least one of A and B", "at least one of A or B", "A, B, or C", "at least one of A, B, and C", and "at least one of A, B, or C" can include any one of the items listed together in the corresponding phrase among those phrases, or all possible combinations thereof. Terms such as "first," "second," or "first" or "second" may be used merely to distinguish one component from another, and do not limit the components in any other respect (e.g., importance or order). When a component (e.g., a first component) is referred to as "coupled" or "connected" to another (e.g., a second component), with or without the terms "functionally" or "communicatively," it means that the component can be connected to the other component directly (e.g., wired), wirelessly, or through a third component.

[0147] The term "module" used in various embodiments of this document may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit. A module may be an integral component, or a minimum unit or part of such a component that performs one or more functions. For example, according to one embodiment, a module may be implemented in the form of an application-specific integrated circuit (ASIC).

[0148] Various embodiments of the present document may be implemented as software (e.g., a program (640)) including one or more instructions stored in a storage medium (e.g., an internal memory (636) or an external memory (638)) readable by a machine (e.g., an electronic device (601)). For example, a processor (e.g., a processor (620)) of the machine (e.g., an electronic device (601)) may call at least one instruction among the one or more instructions stored from the storage medium and execute it. This enables the machine to operate to perform at least one function according to the at least one called instruction. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The machine-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-transitory' simply means that the storage medium is a tangible device and does not contain signals (e.g., electromagnetic waves), and the term does not distinguish between cases where data is stored semi-permanently or temporarily on the storage medium.

[0149] According to one embodiment, the method according to various embodiments disclosed in this document may be provided as included in a computer program product. The computer program product may be traded as a commodity between a seller and a buyer. The computer program product may be distributed in the form of a machine-readable storage medium (e.g., compact disc read-only memory (CD-ROM)), or may be distributed online (e.g., downloaded or uploaded) via an application store (e.g., Play Store™) or directly between two user devices (e.g., smart phones). In the case of online distribution, at least a portion of the computer program product may be temporarily stored or temporarily generated in a machine-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or an intermediary server.

[0150] According to various embodiments, each component (e.g., a module or a program) of the above-described components may include one or more entities, and some of the entities may be separated and placed in other components. According to various embodiments, one or more components or operations of the aforementioned components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (e.g., a module or a program) may be integrated into a single component. In such a case, the integrated component may perform one or more functions of each of the plurality of components identically or similarly to those performed by the corresponding component among the plurality of components prior to the integration. According to various embodiments, the operations performed by a module, program, or other component may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, omitted, or one or more other operations may be added.

Claims

1. In a diplexer, A first terminal configured to be connected to an external RF signal path of the above diplexer; A second terminal electrically connected to the first terminal through a first RF signal path inside the diplexer; A third terminal electrically connected to the first terminal through the second RF signal path within the above; A first filter circuit forming at least a portion of the first RF signal path and configured to substantially pass signals of a first frequency band lower than a first designated frequency (f2); and A second filter circuit forming at least a portion of the second RF signal path and configured to substantially pass signals of a second frequency band higher than the second designated frequency (f3), The above first filter circuit, a first acoustic resonator configured not to pass the third frequency band, and A first LC filter is connected in series with the first acoustic resonator and is configured to pass a frequency band lower than a first designated frequency (f2). The above second filter circuit, a second acoustic resonator configured not to pass the fourth frequency band, and A second LC filter is connected in series with the second acoustic resonator and is configured to pass a frequency band higher than a second designated frequency (f3). A diplexer, wherein the first designated frequency (f2) is a lower frequency than the second designated frequency (f3).

2. In paragraph 1, The first filter circuit further includes an inductor connected between the first terminal and the first acoustic resonator, and A diplexer, wherein the second filter circuit further includes a capacitor connected between the first terminal and the second acoustic resonator.

3. In paragraph 1, The third frequency band is adjacent to the second designated frequency (f3) and is lower than the second designated frequency (f3). The fourth frequency band is adjacent to the first designated frequency (f2) and is higher than the first designated frequency (f2), the diplexer.

4. In paragraph 1, A diplexer in which the center frequency (f3') of the third frequency band is higher than the center frequency (f2') of the fourth frequency band.

5. In paragraph 1, The above diplexer is set not to pass a fifth frequency band corresponding to between the first designated frequency (f2) and the second designated frequency (f3), A diplexer, wherein the bandwidth value of the fifth frequency band is set to 10% or less compared to the center frequency value of the fifth frequency band.

6. In paragraph 1, A diplexer, wherein each of the first designated frequency (f2) and the second designated frequency (f3) is higher than 2 GHz.

7. In paragraph 1, The above first LC filter is set not to pass a frequency band lower than the third designated frequency (f1), A diplexer wherein the third designated frequency (f1) is lower than the first designated frequency (f2).

8. In paragraph 1, The above second LC filter is set not to pass a frequency band higher than the fourth designated frequency (f4), The fourth designated frequency (f4) is higher than the second designated frequency (f3), the diplexer.

9. In a device for filtering the frequency of a signal: A plurality of terminals including a first terminal, a second terminal, and a third terminal; A low band filter circuit including a first acoustic resonator and a first LC filter connected in series between the first terminal and the second terminal, A high band filter circuit including a second acoustic resonator and a second LC filter connected in series between the first terminal and the third terminal, The above low band filter circuit is set to substantially pass a first signal portion corresponding to a first frequency band lower than a first designated frequency (f2) of the input signal, The above high band filter circuit is set to substantially pass a second signal portion corresponding to a second frequency band higher than a second designated frequency (f3) of the input signal, A device wherein the first specified frequency (f2) is lower than the second specified frequency (f3).

10. In paragraph 9, A device wherein the first acoustic resonator forms at least a portion of a first notch filter, and the second acoustic resonator forms at least a portion of a second notch filter.

11. In paragraph 9, The first acoustic resonator is set to substantially not pass a third frequency band between the first frequency band and the second frequency band, The second acoustic resonator is set to substantially not pass a fourth frequency band between the first frequency band and the second frequency band, A device wherein the fourth frequency band includes at least a portion of a band different from the third frequency band.

12. In paragraph 11, The third frequency band is adjacent to the second designated frequency (f3) and is lower than the second designated frequency (f3). The device wherein the fourth frequency band is adjacent to the first designated frequency (f2) and is higher than the first designated frequency (f2).

13. In paragraph 9, The above low band filter circuit further includes an inductor connected between the first terminal and the first acoustic resonator, and A device wherein the high band filter circuit further includes a capacitor connected between the first terminal and the second acoustic resonator.

14. In paragraph 9, The fifth frequency band corresponding to the first designated frequency (f2) and the second designated frequency (f3) is set not to pass through, A device wherein the bandwidth value of the fifth frequency band is set to 10% or less compared to the center frequency value of the fifth frequency band.

15. In a portable communication device, antenna; transceiver; and A diplexing circuit comprising: A first terminal connected to at least one of an RF signal path connected to one of the antenna or the transceiver or an RF signal path external to the diplexing circuit; A second terminal connected to the first terminal through a first RF signal path inside the diplexing circuit; A third terminal connected to the first terminal through a second RF signal path inside the diplexing circuit; A first filter circuit forming at least a portion of the first RF signal path and configured to substantially pass signals of a first frequency band lower than a first designated frequency (f2); and A second filter circuit forming at least a portion of the second RF signal path and configured to substantially pass signals of a second frequency band higher than the second designated frequency (f3), The above first designated frequency (f2) is a lower frequency than the above second designated frequency (f3), The above first filter circuit, A first acoustic resonator configured not to pass the third frequency band, and A first LC filter is connected in series with the first acoustic resonator and is configured to pass a frequency band lower than a first designated frequency (f2). The above second filter circuit, A second acoustic resonator configured not to pass the fourth frequency band; and A portable communication device comprising a second LC filter connected in series with the second acoustic resonator and configured to pass a frequency band higher than a second designated frequency (f3).

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