Ultra-wideband transmitting front-end assembly

Abstract

The utility model discloses an ultra wide band transmitting front-end assembly which comprises an intermediate frequency input port, a 0.3-2.1 GHz radio frequency output channel, a 5.5-18 GHz radio frequency output channel, a 1.9-6.5 GHz radio frequency output channel and a 32-38 GHz radio frequency output channel. The intermediate frequency input port receives a 0.3-2GHz straight-through signal and outputs the signal to the up-conversion output channel and the down-conversion output channel through the single-pole double-throw switch group. And the down-conversion output channel respectively outputs three channels, namely a 5.5-18GHz output channel, a 1.9-6.5 GHz output channel and a 32-38GHz output channel. According to the utility model, ultra-width and multi-path emission signals are realized, wherein the four paths of radio frequency signals are 0.3-2.1 GHz, 1.9-6.5 GHz, 5.5-18 GHz and 32-38 GHz; the stray and harmonic suppression degree is high; a high-performance filter ensures the stray suppression degree; and due to multi-stage segmentation, the harmonic suppression degree is ensured.

Description

Technical Field

[0001] The utility model relates to the field of microwaves, in particular to an ultra-wideband transmitting front-end component. Background Art

[0002] Ultra-wideband wireless communication technology is a high data rate, low power consumption short-range wireless communication technology, which has become one of the research hotspots at home and abroad in recent years. It can achieve a higher transmission data rate and is one of the solutions for wireless personal area networks.

[0003] At present, there are two main technical difficulties in the ultra-wideband transmission front-end: one is to realize large-bandwidth (0.3Ghz~18Ghz&32Ghz~38Ghz) signal transmission; the other is to achieve a wide range (-70dBm~3dBm) of adjustable output power with high precision. Utility Model Content

[0004] The utility model aims to provide an ultra-wideband transmitting front-end component with large bandwidth and large output power.

[0005] The purpose of the utility model is achieved as follows: an ultra-wideband transmission front-end component, including an intermediate frequency input port, a 0.3-2.1GHz radio frequency output channel, a 5.5-18GHz radio frequency output channel, a 1.9-6.5GHz radio frequency output channel, and a 32-38GHz radio frequency output channel;

[0006] The intermediate frequency input port receives a 0.3-2 GHz through signal and outputs an up-conversion output channel and a down-conversion output channel through a single-pole double-throw switch group;

[0007] The up-conversion output channel is composed of a 0.3-2.5G filter, a digitally controlled attenuator, an amplifier, a digitally controlled attenuator, an amplifier, a digitally controlled attenuator, an amplifier, a single-pole five-throw switch group, and a modulation switch connected in series in sequence;

[0008] The down-conversion output channel is composed of a 1.3-2.3G filter, a low noise amplifier, a first mixer, a 4-5G filter, a low noise amplifier, a low pass, a second mixer, a filter, a low noise amplifier, a digitally controlled attenuator, a single-pole four-throw switch group, a low noise amplifier, a digitally controlled attenuator, and a single-pole three-throw switch connected in series in sequence;

[0009] The single-pole triple-throw switch outputs three channels, namely, a 5.5-18 GHz output channel, a 1.9-6.5 GHz output channel, and a 32-38 GHz output channel;

[0010] The 5.5-18 GHz output channel is composed of a digitally controlled attenuator, a low noise amplifier, a single-pole triple-throw switch group, a modulation switch, and an 18.5 GHz low-pass filter in series.

[0011] The 1.9-6.5 GHz output channel is composed of a 10-18.5 GHz filter, a third mixer, a 1.5-8.5 GHz filter, a digitally controlled attenuator, an amplifier, a digitally controlled attenuator, an amplifier, a 6.5 GHz low-pass, a single-pole five-throw switch group, and a modulation switch connected in series in sequence;

[0012] The 32-38 GHz output channel is composed of an 8-12 GHz filter, a fourth mixer, a low noise amplifier, a single-pole double-throw switch group, a digitally controlled attenuator, a low noise amplifier, a digitally controlled attenuator, a low noise amplifier, a filter, and a modulation switch connected in series in sequence.

[0013] Preferably, the first mixer receives an intermediate frequency signal of 1.3 to 2.3 GHz and mixes it with a local oscillator signal 1 of 6.3 GHz to obtain an intermediate frequency signal of 4 to 5 GHz; the second mixer receives an intermediate frequency signal of 4 to 5 GHz and mixes it with a local oscillator signal of 10 to 20 GHz to obtain an RF signal of 6 to 18 GHz; the third mixer receives an intermediate frequency signal of 10 to 18.5 G and mixes it with a local oscillator signal 3 of 20 GHz to obtain an RF signal of 1.9 to 6.5 GHz; the fourth mixer receives an intermediate frequency signal of 80 to 12 G and mixes it with a local oscillator signal of 24 / 26 GHz to obtain an RF signal of 32 to 38 GHz.

[0014] Preferably, five groups of filter channels are provided between the single-pole five-throw switch groups located in the up-conversion output channel, and the five groups of filter channels are 0.3-0.5G filter, 0.4-0.7G filter, 0.6-1.1G filter, 0.9-1.6G filter, and 1.4-2.1G filter respectively.

[0015] Preferably, three groups of filter channels are provided between the single-pole triple-throw switch groups located at the 5.5-18 GHz output channels, and the three groups of filter channels are respectively 5.5-9.5G filters, 8.5-12.5G filters, and 11.5-18.5G filters.

[0016] Preferably, five groups of filter channels are provided between the single-pole five-throw switch groups located at the 1.9-6.5GHz output channels, and the five groups of filter channels are 1.9-3.2G filter, 2.2-3.7G filter, 2.7-4.6G filter, 3.6-6.1G filter, and 5.1-6.5G filter.

[0017] Preferably, two groups of filter channels are provided between the single-pole double-throw switch groups located at the 32-38 GHz output channels, and the two groups of filter channels are 32-35G filters and 34-38G filters.

[0018] Compared with the prior art, the utility model is beneficial in that:

[0019] 1. Realize ultra-wide, multi-channel transmission signals: 0.3~2.1GHz, 1.9~6.5GHz, 5.5~18GHz and 32~38GHz four-channel RF signals

[0020] 2. High spurious and harmonic suppression: high-performance filter to ensure spurious suppression; multi-stage segmentation to ensure harmonic suppression;

[0021] 3. The output power is adjustable in a wide range: transmitting power -70dBm to 3dBm. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0023] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0024] It should be noted that in the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. Terms such as "horizontal", "vertical", and "overhanging" do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0025] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] like Figure 1As shown, an ultra-wideband transmission front-end component includes an intermediate frequency input port, a 0.3-2.1 GHz RF output channel, a 5.5-18 GHz RF output channel, a 1.9-6.5 GHz RF output channel, and a 32-38 GHz RF output channel;

[0027] The intermediate frequency input port accepts 0.3-2GHz direct-through signals and outputs up-conversion output channels and down-conversion output channels through a single-pole double-throw switch group;

[0028] The up-conversion output channel is composed of a 0.3-2.5G filter, a digitally controlled attenuator, an amplifier, a digitally controlled attenuator, an amplifier, a digitally controlled attenuator, an amplifier, a single-pole five-throw switch group, and a modulation switch connected in series in sequence;

[0029] The down-conversion output channel is composed of a 1.3-2.3G filter, a low noise amplifier, a first mixer, a 4-5G filter, a low noise amplifier, a low pass, a second mixer, a filter, a low noise amplifier, a digitally controlled attenuator, a single-pole four-throw switch group, a low noise amplifier, a digitally controlled attenuator, and a single-pole three-throw switch connected in series in sequence;

[0030] The single-pole triple-throw switch outputs three channels, namely 5.5-18GHz output channel, 1.9-6.5GHz output channel, and 32-38GHz;

[0031] The 5.5-18GHz output channel is composed of a digitally controlled attenuator, a low noise amplifier, a single-pole triple-throw switch group, a modulation switch, and an 18.5G low-pass filter in series.

[0032] The 1.9-6.5GHz output channel is composed of a 10-18.5G filter, a third mixer, a 1.5-8.5G filter, a digitally controlled attenuator, an amplifier, a digitally controlled attenuator, an amplifier, a 6.5G low-pass, a single-pole five-throw switch group, and a modulation switch connected in series in sequence;

[0033] The 32-38 GHz output channel is composed of an 8-12 GHz filter, a fourth mixer, a low noise amplifier, a single-pole double-throw switch group, a digitally controlled attenuator, a low noise amplifier, a digitally controlled attenuator, a low noise amplifier, a filter, and a modulation switch connected in series in sequence.

[0034] The first mixer receives an intermediate frequency signal of 1.3 to 2.3 GHz and mixes it with a local oscillator signal 1 of 6.3 GHz to obtain an intermediate frequency signal of 4 to 5 GHz; the second mixer receives an intermediate frequency signal of 4 to 5 GHz and mixes it with a local oscillator signal of 10 to 20 GHz to obtain an RF signal of 6 to 18 GHz; the third mixer receives an intermediate frequency signal of 10 to 18.5 G and mixes it with a local oscillator signal 3 of 20 GHz to obtain an RF signal of 1.9 to 6.5 GHz; the fourth mixer receives an intermediate frequency signal of 80 to 12 G and mixes it with a local oscillator signal of 24 / 26 GHz to obtain an RF signal of 32 to 38 GHz.

[0035] Five groups of filter channels are arranged between the single-pole five-throw switch groups located in the up-conversion output channel, and the five groups of filter channels are respectively 0.3-0.5G filter, 0.4-0.7G filter, 0.6-1.1G filter, 0.9-1.6G filter, and 1.4-2.1G filter; the frequency overlap between each filter is 100MHz or 200MHz, which can well suppress the amplitude of the second harmonic signal within the passband frequency range, and ensure excellent harmonic indicators in the full frequency band of 0.3-2.1GHz.

[0036] Three groups of filtering channels are arranged between the single-pole triple-throw switch groups located at the 5.5-18 GHz output channel, and the three groups of filtering channels are 5.5-9.5G filter, 8.5-12.5G filter, and 11.5-18.5G filter respectively; the frequency overlap between each filter is 1GHz, which can effectively suppress the amplitude of the second harmonic signal within the passband frequency range, and ensure excellent harmonic indicators in the full frequency band of 5.5-18 GHz.

[0037] There are five groups of filtering channels between the single-pole five-throw switch group located in the 1.9-6.5GHz output channel. The five groups of filtering channels are 1.9-3.2G filter, 2.2-3.7G filter, 2.7-4.6G filter, 3.6-6.1G filter, and 5.1-6.5G filter. The frequency overlap between each filter is 1GHz, which can effectively suppress the amplitude of the second harmonic signal within the passband frequency range, ensuring excellent harmonic indicators in the full frequency band of 1.9-6.5GHz.

[0038] Two groups of filtering channels are provided between the single-pole double-throw switch groups located at the 32-38 GHz output channel. The two groups of filtering channels are 32-35G filters and 34-38G filters. The frequencies of the filters overlap by 1 GHz, and channel switching can be performed corresponding to two local oscillator points, meeting the use requirements of the total frequency band of 32-38 GHz.

[0039] The working principle of the utility model is as follows: 0.3-2GHz direct-through signal passes through the intermediate frequency input port and is switched to the 0.3-2.1GHz up-conversion channel output through a single-pole double-throw switch. The 0.3-2.1GHz up-conversion channel is filtered, amplified, and program-controlled, and then passes through the switch filter group and the debugging switch to output the processed 0.3-2.1GHz signal. The intermediate frequency signal of 1.3-2.3 GHz is mixed with the local oscillator signal 1 of 6.3 GHz to obtain the intermediate frequency signal of 4-5 GHz, and the intermediate frequency signal of 4-5 GHz is mixed with the local oscillator signal 2 of 10-20 GHz to obtain the radio frequency signal of 6-18 GHz; the radio frequency signal of 6-18 GHz is switched into three signals through a switch, one of which is mixed with the 20 GHz local oscillator signal 3 to obtain the radio frequency signal of 1.9-6.5 GHz, one of which is mixed with the 24 / 26 GHz local oscillator signal 4 to obtain the radio frequency signal of 32-38 GHz, and the other one directly outputs the radio frequency signal of 5.5-18 GHz, and finally obtains four radio frequency signals of 0.3-2.1 GHz, 1.9-6.5 GHz, 5.5-18 GHz and 32-38 GHz.

[0040] The above-described embodiments are merely descriptions of preferred implementations of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by ordinary personnel in the field to the technical solution of the present invention should fall within the protection scope of the present invention, and the technical contents of the present invention for protection have been fully recorded in the claims.

Claims

1. An ultra-wideband transmitting front-end component, characterized in that: Including intermediate frequency input port, 0.3~2.1GHz RF output channel, 5.5~18GHz RF output channel, 1.9~6.5GHz RF output channel, 32~38GHz RF output channel; The intermediate frequency input port receives a 0.3-2 GHz through signal and outputs an up-conversion output channel and a down-conversion output channel through a single-pole double-throw switch group; The up-conversion output channel is composed of a 0.3-2.5G filter, a digitally controlled attenuator, an amplifier, a digitally controlled attenuator, an amplifier, a digitally controlled attenuator, an amplifier, a single-pole five-throw switch group, and a modulation switch connected in series in sequence; The down-conversion output channel is composed of a 1.3-2.3G filter, a low noise amplifier, a first mixer, a 4-5G filter, a low noise amplifier, a low pass, a second mixer, a filter, a low noise amplifier, a digitally controlled attenuator, a single-pole four-throw switch group, a low noise amplifier, a digitally controlled attenuator, and a single-pole three-throw switch connected in series in sequence; The single-pole triple-throw switch outputs three channels, namely, a 5.5-18 GHz output channel, a 1.9-6.5 GHz output channel, and a 32-38 GHz output channel; The 5.5-18 GHz output channel is composed of a digitally controlled attenuator, a low noise amplifier, a single-pole triple-throw switch group, a modulation switch, and an 18.5 GHz low-pass filter in series. The 1.9-6.5 GHz output channel is composed of a 10-18.5 GHz filter, a third mixer, a 1.5-8.5 GHz filter, a digitally controlled attenuator, an amplifier, a digitally controlled attenuator, an amplifier, a 6.5 GHz low-pass, a single-pole five-throw switch group, and a modulation switch connected in series in sequence; The 32-38 GHz output channel is composed of an 8-12 GHz filter, a fourth mixer, a low noise amplifier, a single-pole double-throw switch group, a digitally controlled attenuator, a low noise amplifier, a digitally controlled attenuator, a low noise amplifier, a filter, and a modulation switch connected in series in sequence.

2. The ultra-wideband transmission front-end component according to claim 1, characterized in that: The first mixer receives an intermediate frequency signal of 1.3 to 2.3 GHz and mixes it with a local oscillator signal 1 of 6.3 GHz to obtain an intermediate frequency signal of 4 to 5 GHz; the second mixer receives an intermediate frequency signal of 4 to 5 GHz and mixes it with a local oscillator signal of 10 to 20 GHz to obtain an RF signal of 6 to 18 GHz; the third mixer receives an intermediate frequency signal of 10 to 18.5 G and mixes it with a local oscillator signal 3 of 20 GHz to obtain an RF signal of 1.9 to 6.5 GHz; the fourth mixer receives an intermediate frequency signal of 8 to 12 G and mixes it with a local oscillator signal of 24 / 26 GHz to obtain an RF signal of 32 to 38 GHz.

3. The ultra-wideband transmission front-end component according to claim 1, characterized in that: Five groups of filter channels are arranged between the single-pole five-throw switch groups located at the up-conversion output channel, and the five groups of filter channels are respectively 0.3-0.5G filter, 0.4-0.7G filter, 0.6-1.1G filter, 0.9-1.6G filter, and 1.4-2.1G filter.

4. The ultra-wideband transmission front-end component according to claim 1, characterized in that: Three groups of filter channels are arranged between the single-pole triple-throw switch groups of the 5.5-18 GHz output channels, and the three groups of filter channels are respectively 5.5-9.5G filters, 8.5-12.5G filters, and 11.5-18.5G filters.

5. The ultra-wideband transmission front-end component according to claim 1, characterized in that: Five groups of filter channels are arranged between the single-pole five-throw switch group located at the 1.9-6.5GHz output channel, and the five groups of filter channels are 1.9-3.2G filter, 2.2-3.7G filter, 2.7-4.6G filter, 3.6-6.1G filter, and 5.1-6.5G filter.

6. The ultra-wideband transmission front-end component according to claim 1, characterized in that: Two groups of filter channels are arranged between the single-pole double-throw switch groups of the 32-38 GHz output channels, and the two groups of filter channels are 32-35 GHz filters and 34-38 GHz filters.

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