Head-mounted device, antenna and user equipment

Abstract

A head-mounted device, an antenna (100) and a user equipment (10) may include an antenna (100) disposed proximate to a module (300) of the head-mounted device comprising a non-conductive material.

Description

Technical Field

[0001] Various embodiments herein generally relate to the field of wireless communications, and more particularly, to a head mounted device, an antenna, and a user equipment. Background Art

[0002] In recent decades, electronic wearable devices have flourished. When properly designed, these devices are usually not handheld during use, but are "worn" on the body parts of the user (i.e., the wearer) as accessories or even clothing. Therefore, it is quite convenient for the wearer to interact with the outside world in various ways at the same time. For example, virtual reality (VR), augmented reality (AR), or extended reality (XR) technology can apply electronic headwear to provide visual information and / or acoustic information, while the wearer can operate the keyboard or game controller by hand. As another example, an electronic wristband can collect the wearer's electrocardiogram signals without interrupting the wearer's daily activities. As another example, electronic glasses can prompt the wearer of the detailed content of instant messages, even when both of the wearer's bands are occupied. Since visual signals and acoustic signals are the most common of the various information received by humans, many electronic wearable devices are head-mounted to facilitate interaction with the wearer's eyes, ears, and vocal organs, or to provide a vivid imitation of the wearer's real perception.

[0003] The rapid development of batteries and integrated circuits has made electronic wearable devices smaller and more compact, aiming to integrate them into every application scenario in people's daily lives. Therefore, the growing demand for convenient "anytime, anywhere" access to the Internet and WLAN requires electronic wearable devices to be wireless and portable. One prospect is that electronic wearable devices can provide high-quality wireless access without affecting the electromagnetic environment of other components in the device. For example, AR / VR head-mounted displays should not be larger or heavier than ordinary glasses or goggles. Such goals pose a huge challenge to the robust design of electronic wearable devices, especially head-mounted devices. Summary of the invention

[0004] In some embodiments, the present disclosure may provide a head-mounted device, comprising: a shell comprising a conductive material; a module comprising a first part, the first part comprising a non-conductive material and the module is arranged on a part of the shell away from the user's head when the head-mounted device is worn by the user; and an antenna, the antenna is arranged close to the module.

[0005] In some other embodiments, the present disclosure may provide an antenna comprising: a first element, the first element comprising: a feed point, a first member disposed on a first side of the feed point and connected to a portion of a user device comprising a conductive material, and a second member disposed on a second side of the feed point; and a second element, the second element being disposed to be separated from the second member and connected to another portion of the user device comprising a conductive material.

[0006] In some other embodiments, the present disclosure may provide a user device, comprising: a first part, the first part comprising a non-conductive material; a second part, the second part comprising a conductive material; and an antenna, the antenna being arranged close to the first part, the antenna comprising: a first element, the first element comprising: a feeding point, a first member arranged on a first side of the feeding point and connected to a first position of the second part, and a second member arranged on a second side of the feeding point; and a second element, the second element being arranged to be spaced apart from the second member and connected to a second position of the second part. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Features and advantages of the present disclosure will be apparent from the following detailed description taken in conjunction with the accompanying drawings, which together illustrate features of the present disclosure by way of example; and in which:

[0008] Figure 1 A schematic structural diagram showing some embodiments when a user equipment (UE) is worn by a user;

[0009] Figures 2 to 4 An example of arrangement of antennas in a UE is shown;

[0010] Figure 5 Another example of arrangement of antennas in a UE is shown;

[0011] Figure 6 A schematic diagram showing an antenna according to some embodiments;

[0012] Figure 7 Shown as Figure 6 Examples of dimensions of antennas shown;

[0013] Figure 8 and Fig. 9 Shown as Figure 7 Results of simulation of the current distribution of the antenna shown;

[0014] Fig.10 Shown as Figure 7 Results of simulation of the impedance of the antenna are shown;

[0015] Fig.11 Shown as Figure 7 Results of simulations showing the efficiency of the antenna; and

[0016] Fig.12 and Fig.13 Shown as Figure 7 The radiation pattern of the antenna is shown as the result of a simulation. DETAILED DESCRIPTION

[0017] The following detailed description refers to the accompanying drawings. The same reference numerals may be used in different drawings to identify the same or similar elements. In the following description, for the purpose of illustration and not limitation, specific details, such as specific structures, architectures, interfaces, technologies, etc., are set forth to provide a thorough understanding of various aspects of the claimed embodiments. However, it will be apparent to those skilled in the art who benefit from the present disclosure that various aspects of the claimed embodiments can be practiced in other examples that depart from these specific details. In some cases, descriptions of known devices, circuits, and methods are omitted to avoid obscuring the description of the embodiments of the present disclosure with unnecessary details.

[0018] The various aspects of the illustrative embodiments will be described using terms commonly used by those skilled in the art to convey the substance of their work to other persons skilled in the art. However, it will be apparent to those skilled in the art that alternative embodiments may be practiced with only some of the described aspects. For purposes of illustration, specific quantities, materials, and configurations are set forth to provide a thorough understanding of the illustrative embodiments. However, it will be apparent to those skilled in the art that alternative embodiments may be practiced without specific details. In other cases, in order not to obscure the illustrative embodiments, well-known features are omitted or simplified.

[0019] The phrase "in various embodiments," "in some embodiments," etc. is used repeatedly. The phrase generally does not refer to the same embodiment; however, it may. The terms "comprising," "having," and "including" are synonymous unless the context dictates otherwise. The phrase "A or B" means (A), (B), or (A and B).

[0020] In the following, reference will be made to Figures 1 to 13 Various embodiments are briefly described.

[0021] In some embodiments, a user device such as a wireless portable electronic wearable device provides a compact design of the components within the device. Such a compact design may be required for a head-mounted device because a bulky head-mounted device not only causes inconvenience during use, but also poses health risks, particularly aggravating neck pain. Therefore, many head-mounted devices attempt to set each component as close to the user's head as possible so that the user can experience less discomfort caused by unbalanced additional weight when moving or turning their head. This design also brings the antenna very close to the user's body. For example, the antenna of the electronic glasses is set at the tip or middle part of the temple near the user's ear or temple. Since the human body generates an inductance of approximately 500nH to 750nH, it attenuates electromagnetic waves and causes the strength of the wireless signal transmitted or received by the antenna to decrease and the bit error rate to increase. Therefore, the wireless communication of the head-mounted device is degraded.

[0022] In some embodiments, in order to improve the quality of wireless communication, the antenna may be disposed on a side of the head-mounted device that is away from the user's head when the head-mounted device is worn by the user, such as on a side of a lens of the head-mounted device. However, due to its sense of luxury, the user may prefer a conductive material (such as metal) as an outer part of the head-mounted device (such as a metal frame). In this case, since the performance of the antenna is reduced under the condition of a conductive material, the area where the antenna is expected to be arranged is changed to a non-conductive material such as plastic, which reduces the sense of luxury and increases the complexity of the industrial design. Therefore, in some embodiments, it may be necessary to maintain the performance of the antenna and the sense of luxury without changing the design of the outer part (such as a metal frame).

[0023] To this end, in some embodiments, a head-mounted device is provided, comprising: a shell comprising a conductive material; a module comprising a first part, the first part comprising a non-conductive material and the module being arranged on a part of the shell away from the user's head when the head-mounted device is worn by the user; and an antenna, the antenna being arranged close to the module.

[0024] In some embodiments, the antenna may be disposed proximate to the first portion.

[0025] In some embodiments, the module may further include: a second portion including a conductive material, and the antenna is connected to the second portion.

[0026] In some embodiments, the antenna may include: a first element comprising a feed point, a first member disposed on a first side of the feed point and connected to a second portion, and a second member disposed on a second side of the feed point; and a second element disposed to be spaced apart from the second member and connected to the second portion.

[0027] In some embodiments, the second member may be configured to feed power and the second member may be configured to be grounded.

[0028] In some embodiments, the second element may be spaced apart from the second member on a side of the second member remote from the feed point.

[0029] In some embodiments, the first member and the second element may be connected to respective distal locations of the second portion.

[0030] In some embodiments, an edge of the second element and an edge of the second member may be turned toward each other.

[0031] In some embodiments, the length of the second member may be shorter than the length of the second element.

[0032] In some embodiments, the first element may be configured to operate at a first frequency and the second element may be configured to operate at the first frequency and the second frequency.

[0033] In some embodiments, the first frequency may be higher than the second frequency.

[0034] In some embodiments, the module may be selected from at least any one of the group consisting of an optical module and a camera module.

[0035] In some embodiments, the conductive material may include a metal.

[0036] In some embodiments, the non-conductive material may include plastic.

[0037] In some embodiments, an antenna may be provided, comprising: a first element, the first element comprising: a feed point; a first member, the first member being disposed on a first side of the feed point and connected to a portion of a user device comprising a conductive material, and a second member, the second member being disposed on a second side of the feed point; and a second element, the second element being disposed to be spaced apart from the second member and connected to another portion of the user device comprising a conductive material.

[0038] In some embodiments, the above-mentioned part and the above-mentioned other part of the user device can be corresponding remote locations of the second part of the head-mounted device.

[0039] In some embodiments, the portion and the portion may be spaced apart from each other.

[0040] In some embodiments, a user device may be provided, comprising: a first part, the first part comprising a non-conductive material; a second part, the second part comprising a conductive material; and an antenna, the antenna being disposed close to the first part, the antenna comprising: a first element, the first element comprising: a feeding point; a first member, the first member being disposed on a first side of the feeding point and connected to a first position of the second part; and a second member, the second member being disposed on a second side of the feeding point; and a second element, the second element being disposed to be spaced apart from the second member and connected to a second position of the second part.

[0041] In some embodiments, the first portion of the user device may be a first portion of a module of the head mounted device, and the second portion of the user device may be a second portion of the module of the head mounted device.

[0042] In some embodiments, the first location and the second location may be distal locations of a module of the head mounted device that include conductive material.

[0043] In some embodiments, the first location and the second location are remote from each other.

[0044] In some embodiments, the antenna may be configured to send or receive wireless signals and is located at a portion of the housing of the head mounted device. In this case, when the head mounted device is worn by a user, the portion protrudes away from the user's head. Since the antenna is disposed away from the user's head, most of the wireless signals propagate through free space without being affected by the human body. Therefore, during use of the head mounted device, wireless signal attenuation is reduced and wireless communication quality is improved.

[0045] Figure 1 A schematic structural diagram showing some embodiments when a user equipment (UE) is worn by a user. Figure 1 UE 10 is shown as a head mounted device. UE 10 includes an antenna 100, a housing 200 and a module 300.

[0046] The antenna 100 is configured for various communications.

[0047] In some embodiments, for example, the antenna 100 can be configured for cellular communications such as those in accordance with Global System for Mobile Communications (GSM), General Packet Radio Service (GPRS), Universal Mobile Telecommunications System (UMTS), High Speed ​​Packet Access (HSPA), Evolved HSPA (E-HSPA), Long Term Evolution (LTE), LTE-Advanced (LTE-A), Enhanced Mobile Broadband (eMBB), Ultra-Reliable Low Latency Communications (URLLC), and / or Massive Machine Type Communications (mMTC). The antenna 100 can also be configured for cellular communications in accordance with GSM Evolution Enhanced Data (EDGE), GSM EDGE Radio Access Network (GERAN), Universal Terrestrial Radio Access Network (UTRAN), or Evolved UTRAN (E-UTRAN). The antenna 100 can be configured for cellular communications in accordance with Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Digital Enhanced Cordless Telecommunications (DECT), Evolution Data Optimized (EV-DO), derivatives thereof, and any other wireless protocols designed for 3G, 4G, 5G, 6G, and higher.

[0048] For example, in some embodiments of cellular communication, before or after the wireless signal is transmitted as an electromagnetic wave, the wireless signal may be in the form of an oscillating current or an oscillating voltage, for example, at a radio frequency (RF) connector of the antenna 100. The RF connector is configured to electrically connect the antenna to the RF circuit so that the RF circuit provides a feed to the antenna. In practice, the RF connector may be implemented by an on-board wire, a separate cable, etc.

[0049] In some embodiments, the RF circuit may be combined with the processing circuit or may be part of the processing circuit, and is configured to convert an oscillating current or an oscillating voltage into a signal compatible with the processing capability of the processing circuit, or vice versa. Typically, the conversion is achieved by modulation or demodulation. Specifically, the RF circuit modulates the oscillating current or oscillating voltage based on the signal generated by the processing circuit, and then the antenna converts the modulated oscillating current or oscillating voltage into a wireless signal for transmission. Similarly, the antenna converts the received wireless signal into an oscillating current or an oscillating voltage, and the RF circuit demodulates the oscillating current or oscillating voltage to obtain a signal for processing at the processing circuit. In this embodiment, the processing at the processing circuit may include but is not limited to encoding or decoding visual signals, acoustic signals, or control signals. In practice, the processing circuit can be implemented in various ways. For example, the processing circuit can be an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), a dedicated chip, etc. For another example, the processing circuit is a separate chip mounted on a printed circuit board (PCB), or can be integrated into another chip with multiple functions. The present disclosure is not limited to the above examples, and any suitable chip can be used as a processing circuit as long as it can process wireless signals.

[0050] Figure 1 The RF circuit and the processing circuit are not shown in the figure. Each of the RF circuit and the processing circuit may be a component included in the head mounted device or may not be a component included in the head mounted device. That is, the UE may have signal processing capabilities, or may be used as a plug-in unit of another device capable of signal processing, which is not limited herein.

[0051] In some embodiments, the antenna 100 may be configured for Wi-Fi communications, although the scope of the embodiments is not limited in this regard. In some of these embodiments, the antenna 100 may be configured to receive and send orthogonal frequency division multiplexing (OFDM) or orthogonal frequency division multiple access (OFDMA) communication signals on a multi-carrier communication channel. OFDM or OFDMA signals may include multiple orthogonal subcarriers. In some of these multi-carrier embodiments, the antenna 100 may be configured to send or receive signals according to a specific communication standard and / or protocol such as an Institute of Electrical and Electronics Engineers (IEEE) standard and / or any one of the specifications proposed for WLAN, the IEEE standard including IEEE 802.11n-2009, IEEE802.11-2012, IEEE 802.11-2016, IEEE 802.11ac and / or IEEE 802.11ax standards, although the scope of the various aspects is not limited in this regard. The antenna 100 may also be configured to send and / or receive communications that conform to other technologies and standards. In some embodiments, antenna 100 may be configured for efficient Wi-Fi communications in accordance with the IEEE 802.11ax standard. In these embodiments, antenna 100 may be configured to communicate according to OFDMA technology, although the scope of the embodiments is not limited in this respect.

[0052] In some other embodiments, antenna 100 may be configured to transmit and receive signals transmitted using one or more other modulation techniques, such as, for example, spread spectrum modulation of direct sequence code division multiple access (DS-CDMA) and / or frequency hopping code division multiple access (FH-CDMA), time division multiplexing (TDM) modulation, and / or frequency division multiplexing (FDM) modulation, although the scope of the embodiments is not limited in this respect.

[0053] In some embodiments, antenna 100 may be configured to (BT) communication, and conforms to BT connectivity standards such as Bluetooth, Bluetooth 4.0 or Bluetooth 5.0 or any other iteration of the Bluetooth standard. In these embodiments, the antenna 100 can be configured to establish a BT synchronous connection oriented (SCO) link and / or a BT low energy (BT LE) link. In some embodiments, the antenna 100 can be configured to establish an extended SCO (eSCO) link for BT communication. In some of these embodiments, the antenna 100 can be configured to participate in BT asynchronous connectionless (ACL) communication.

[0054] In some embodiments, antenna 100 may be configured for communication over a variety of channel bandwidths, including bandwidths having a center frequency of approximately 900 MHz, 2.4 GHz, 5 GHz, and bandwidths of approximately 1 MHz, 2 MHz, 2.5 MHz, 4 MHz, 5 MHz, 8 MHz, 10 MHz, 16 MHz, 20 MHz, 40 MHz, 80 MHz with continuous bandwidths, or bandwidths of 80+80 MHz (160 MHz) with non-contiguous bandwidths, although the scope of the embodiments is not limited in these respects. In examples where antenna 100 complies with the Wi-Fi standard, the frequency band range of the antenna may be from 2.4 GHz to 2.48 GHz, or from 5.15 GHz to 7.15 GHz. In examples where antenna 100 complies with the Wi-Fi standard, the frequency band range of the antenna may be from 2.4 GHz to 2.48 GHz, or from 5.15 GHz to 7.15 GHz. In another example, the frequency band may range from 2.4 GHz to 2.485 GHz.

[0055] In some embodiments, antenna 100 may be configured as various types including a monopole antenna, a slot antenna, a loop antenna, an inverted-L antenna, an inverted-F antenna, a meander antenna, etc., although the scope of the embodiments is not limited in this respect.

[0056] The housing 200 may be configured to protect components housed therein. Although for simplicity of illustration, Figure 1 The shell 200 in the figure is depicted as a hollow polygon, but in practice, the shell 200 may have various designs in different application scenarios and may have another component or other components different from the components depicted in the drawings. In some embodiments, at least one surface of the shell 200 may be curved, bent, or twisted. In some examples, at least a portion of the shell 200 may be solid or filled with materials and / or components. In some examples, the shell 200 may also include components located near an undepicted portion of the head 20. Various components may be arranged in the shell 200 based on the overall design or overall architecture, so that each component occupies a corresponding space in the shell 200. For simplicity of illustration, components other than the antenna 100 and the module 300 are not shown. Figure 1 Shown in.

[0057] The housing 200 may include a conductive material or be made of a conductive material. In some embodiments, the conductive material may include a metal. In some embodiments, the metal may include aluminum, magnesium, iron, titanium, etc. In other embodiments, the metal may include an alloy such as stainless steel, magnesium-aluminum alloy, etc. The scope of these embodiments is not limited in these respects. In some embodiments, the housing 200 may include a metal frame. In these embodiments, the housing 200 may achieve a luxurious feel for the UE 10.

[0058] In some embodiments, the housing 200 may also include a non-conductive material. In some embodiments, the non-conductive material may include plastic, ceramic, glass, rubber, etc. In some embodiments using plastic, the plastic may include acrylic or polymethyl methacrylate (PMMA), polycarbonate (PC), polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PETE), polyvinyl chloride (PVC), acrylonitrile butadiene styrene (ABS), etc. The scope of these embodiments is not limited in these respects.

[0059] In some embodiments, the housing 200 may include an apparent portion that is relatively clearly visible to another person other than the user when the UE 10 is worn by the user, and a hidden portion that is not relatively clearly visible to another person other than the user when the UE 10 is worn by the user. In some embodiments, the apparent portion may include a conductive material that can achieve a luxurious feel of the UE, and the hidden portion may include a non-conductive material. In some embodiments where the housing 200 includes a front cover and a back cover, the apparent portion may be the front cover of the housing 200, and the hidden portion may be the back cover of the housing 200.

[0060] Module 300 is configured to implement the functions of UE 10. Module 300 can be implemented in various forms. In some embodiments, the module may include an optical module or a camera module. In some embodiments, module 300 may include a projector configured to project an image to UE 10. In some embodiments, module 300 may include a camera, a sensor, a speaker, a connection interface, a battery, etc., which are not specifically limited herein. In some embodiments, the sensor may include: an inertial measurement unit (IMU) including an accelerometer, a gyroscope, and a magnetometer, a time-of-flight sensor, a heat map sensor, a structured light sensor, a depth sensing sensor, a forward tracking and recording camera, an eye tracking camera, a directional microphone, an ambient light sensor, a biosensor, a bone-connected directional audio transducer, an infrared (IR) sensor, etc., which are not specifically limited herein. In some embodiments where module 300 includes an optical module, the optical module may include a heat map sensor, a structured light sensor, a depth sensing sensor, an ambient light sensor, an IR sensor, etc. In some embodiments where module 300 includes a camera module, the camera module may include a forward tracking and recording camera, an eye tracking camera, a rear camera, etc., which are not specifically limited herein.

[0061] Module 300 may include a first portion 310 including a non-conductive material. In some embodiments, first portion 310 may be or include a back cover of module 300, although the scope of the embodiments is not limited in this respect.

[0062] In some embodiments, the non-conductive material may include plastic, ceramic, glass, rubber, etc. In some embodiments using plastic, the plastic may include acrylic or polymethyl methacrylate (PMMA), polycarbonate (PC), polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PETE), polyvinyl chloride (PVC), acrylonitrile butadiene styrene (ABS), etc. The scope of these embodiments is not limited in these respects.

[0063] In some embodiments, module 300 may also include a second portion 320 comprising a conductive material. Second portion 320 may be a base of module 300 or include a base of module 300, although the scope of the embodiments is not limited in this regard. In some embodiments, the conductive material may include a metal. In some embodiments, the metal may include aluminum, magnesium, iron, titanium, etc. In other embodiments, the metal may include an alloy such as stainless steel, magnesium-aluminum alloy, etc. The scope of these embodiments is not limited in these respects. In some embodiments, antenna 100 may be connected to second portion 320.

[0064] In some embodiments, the module 300 may include an apparent portion that is relatively clearly visible to another person other than the user when the UE 10 is worn by the user and a hidden portion that is not relatively clearly visible to another person other than the user when the UE 10 is worn by the user. In some embodiments, the apparent portion may include a conductive material that enables a sense of luxury for the UE 10, and the hidden portion may include a non-conductive material. In some embodiments where the module 300 includes a front cover and a back cover, the apparent portion may be the front cover of the module 300, and the hidden portion may be the back cover of the module 300.

[0065] The module 300 can be arranged on a portion of the housing 200 away from the user's head when the head-mounted device is worn by the user, and the antenna 100 can be arranged close to the module 300. In this case, when the UE 10 is worn by the user, the portion can protrude away from the user's head. Because the antenna 100 is arranged away from the user's head. Most wireless signals propagate through free space without being affected by the human body. Therefore, during the use of the UE 10, the wireless signal attenuates less and the quality of wireless communication is improved. In addition, since the antenna 100 can be arranged close to the module 300 containing non-conductive materials, during the use of the UE 10, the wireless signal attenuates less and the quality of wireless communication is improved. Therefore, the performance of the antenna is maintained without losing the sense of luxury. In addition, there is no need to change the existing design of the outer parts of the housing 200 (such as a metal frame).

[0066] In some embodiments, the antenna 100 may be disposed close to the first portion of the module 300 including the non-conductive material. Therefore, during use of the UE 10, wireless signals transmitted or received by the antenna 100 may be less attenuated and the quality of wireless communication may be further improved.

[0067] In some embodiments, the antenna 100 may be disposed close to a hidden portion of the housing 200 or the module 300 that includes a non-conductive material. Therefore, during use of the UE 10, wireless signals sent or received by the antenna 100 may be less attenuated, and the quality of wireless communication may be further improved.

[0068] The module 300 may be integrated into the UE 10 , inherent to the UE 10 , or inside the UE 10 , or may be external to the UE and may be detachably connected to the UE 10 .

[0069] In some embodiments, the module 300 or the antenna 100 occupies a space in the housing 200. The module 300 or the antenna 100 may be located at a portion A of the housing 200, and when the UE 10 is worn by the user, the portion A may protrude away from the user, such as his head 20. In some embodiments, the method by which the UE 10 is worn by the user depends on the type of the UE 10. Typically, a user wearing the UE 10 (e.g., wearing a head mounted device) means that at least a portion of the housing 200 contacts at least one part of the user, such as his head, so that the housing 200 is fixed or substantially fixed on a part of his body, such as on or near his head. In one example, the UE 10 is glasses, and the housing 200 contacts the user's ears through the temples and contacts the user's nose through the nose pads. In another example, the UE 10 is a helmet, and the housing 200 contacts at least the top of the head. In another example, the UE 10 is a head mounted camera, and the housing 200 contacts the forehead, the parietal ridge, or the top of the head. In some embodiments, as long as the type of the UE 10 is known, the wearing method can be determined separately. In some other embodiments, there are two or more methods. In such an embodiment, the wearing method refers to a method in which the worn UE 10 uses the module 300 or the antenna 100 to implement the function of the module 300 or the normal operation of wireless communication. Figure 1 The portion of the housing 200 that contacts the body (such as the head 20) is shown in FIG.

[0070] like Figure 1 As shown, the outline of the user's head is indicated by a dotted curve, part A is indicated by a dotted circle, and the antenna 100 and the module 300 are represented by black blocks located in the dotted circle. In some embodiments, there are multiple protrusions in the housing 200 that point away from the head 20, and part A can represent any of these protrusions. As an example, Figure 1 The housing 200 in the embodiment may have at least two limited protrusions, so there may be two candidate parts (respectively indicated as part A and part A′). Figure 1 Only the portion A is depicted in black in FIG. 1 , but the module 300 or the antenna 100 may be disposed in either of the two candidate portions A. In some embodiments, the module 300 or the antenna 100 may be disposed in a candidate region that is at a greater distance from the user's skin, that is, in a candidate region that is farther from the user's head 20. In some embodiments, the distance from the candidate portion A to the head 20 may be greater than the distance from the candidate portion A′ to the head 20, and thus the candidate portion A is more preferably used to accommodate the module 300 or the antenna 100 than the portion A′. Figure 1In some of the embodiments shown, the distance from the candidate part A to the head 20 is the same as the distance from the candidate part A′ to the head 20, so there may be no preference between the two parts. In some embodiments, the candidate area with the largest distance to the head 20 among all the candidate areas may be selected as the installation position of the module 300 or the antenna 100. That is, when the UE 10 is worn by the user, among all the parts in the housing that protrude away from the user's part (such as his head), the part A where the module 300 or the antenna 100 is located is placed farthest from the user's part (such as his head).

[0071] In addition, the module 300 or the antenna 100 provided at the portion A may mean the module 300 or the antenna 100 at the portion A located in the cavity in the housing 200, the module 300 or the antenna 100 at the portion A attached to the surface of the housing 200, the module 300 or the antenna 100 at the portion A embedded in the housing 200, or the module 300 or the antenna 100 at the portion A built into the housing 200. That is, the module may be exposed at the housing 200 or may not be exposed at the housing 200. An appropriate configuration may be selected based on the application scenario of the UE 10.

[0072] Figure 1 The schematic diagram in FIG. 1 is a diagram of UE 10 along a certain direction, and the direction is not limited in this document. That is, the direction can be forward, backward, upward, downward, left, right, or any other possible direction. In addition, it should be noted that Figure 1 The black blocks in FIG. 1 are for simplicity of illustration only and do not mean that the shape of the antenna 100 or the module 300 is limited to a rectangle when viewed from this direction.

[0073] Figures 2 to 4 An example of the arrangement of antenna 100 in UE 10 is shown. Figures 2 to 4 In the example of , when the UE is worn by the user, the antenna 100 can be arranged on a side of the UE 10 that is away from a part of the user (such as his head) (such as a side of a lens of a head-mounted device), thereby reducing the loss of wireless signals caused by human factors. Figure 2 As shown, the housing 200 may be made of a non-conductive material (such as plastic) so that the loss of wireless signals can be reduced compared to a housing made of a conductive material (such as metal). However, due to its luxurious feel, the housing 300 may be expected to include or be made of a conductive material such as metal as an outer part of the UE (such as a metal frame), such as Figure 3 In this case, since the performance of the antenna is degraded under the condition of conductive materials, it is desirable to arrange the front area of ​​the antenna to be partially (such as Figure 3) or entirely (as shown in the right part of Figure 4 This reduces the sense of luxury and increases the complexity of industrial design.

[0074] Figure 5 Another example of the arrangement of the antenna 100 in the UE 10 is shown. Figure 5 In the embodiment, the housing 200 may include an apparent portion 210 such as a front cover that is relatively clearly visible to another person other than the user when worn, and a hidden portion 220 such as a back cover that is not relatively clearly visible to another person. The module 300 may include an apparent portion 320 such as a front cover that is relatively clearly visible to another person other than the user when worn, and a hidden portion 310 such as a back cover that is not relatively clearly visible to another person. In some embodiments, the module 300 may include an optical module and / or a camera module. In some embodiments where the UE 10 is a head-mounted device (such as a VR headset, an AR headset, or an XR headset), the head-mounted device may include a lens 500 disposed between the front cover and the back cover of the housing 200, and the module 300 may be disposed on at least one side of the lens. In this case, the antenna 100 may be disposed close to the module 300. In some embodiments, the antenna 100 may be provided in plurality, such as two. In some embodiments, the module 300 may be provided in plurality, such as two. In some embodiments, the number of antennas 100 may be equal to the number of modules 300, for example, both are two, such as Figure 5 In these embodiments, the antenna 100 may be arranged close to each module 300. Figure 5 As shown, in an embodiment where both the antenna 100 and the module 300 are provided in two, the module 300 may be provided on either side of the lens 400, and the antenna 100 may be provided close to each module 300. In some other embodiments, the number of antennas 100 may not be equal to the number of modules 300, and may be higher or lower than the number of modules 300. In an embodiment where the number of antennas 100 is lower than the number of modules 300, the antenna 100 may be provided close to a portion of the modules 300. In an embodiment where the number of antennas 100 is higher than the number of modules 300, each of the antennas 100 may be provided close to a corresponding module 300. In some embodiments, the antenna 100 may be provided close to the hidden portion 220 or the hidden portion 320. Although in Figure 5 The antenna 100 and the module 300 are both provided as two, but they may both be provided as one. The scope of the embodiments is not limited in these respects.

[0075] Figure 6 Schematic diagram of antenna 100 according to some embodiments is shown. Figure 6, the antenna 100 includes a first antenna 100-1 disposed near a module 300 disposed on a first side (e.g., left side) of the UE 10 and a second antenna 100-2 disposed near a module 300 disposed on a second side (e.g., right side) of the UE 10. Figure 6 The number of antennas 100 is shown as two, but this is shown only by way of illustration and not limitation, and the number may be more than three or may be one. Figure 6 As shown, in some embodiments, the antenna 100 may include a first element 110 and a second element 120. The first element 110 may include a feed point 112, a first member 114 and a second member 116. The first member 114 may be disposed on a first side (such as an upper side) of the feed point 112. The first member 114 may be connected to the second portion 320 of the module 300. The second member 116 may be disposed on a second side (such as a lower side) of the feed point 112. The second element 120 may be disposed to be spaced apart from the second member 116 and connected to the second portion 320. In some embodiments, the second member 116 may be configured to be fed, and the second element 120 may be configured to be grounded. In some embodiments, the first element 110 may be used as a feed element, and the second element 120 may be used as a ground element or a parasitic element. In some embodiments, the first member 114 may be a grounding member (GND), and the second member 116 may be a feed member. In some embodiments, the second element 120 may be spaced apart from the second member 116 on a side of the second member 116 away from the feed point 112. In some embodiments, the first member 114 and the second member 120 may be connected to respective distal locations 322 and 324 of the second portion 320. In some embodiments, the first member 114 may be connected to an upper location 322 of the second portion 320 comprising a conductive material, and the second member 116 may be connected to a lower location 324 of the second portion 320. Thus, the conductive portion of the module 300 may be used as a ground for the antenna 100, thereby reducing space occupation within the housing 200 and improving the compactness of the UE 10.

[0076] In some embodiments, the edge of the second element 126 and the edge of the second member 116 can be turned to each other. Therefore, the coupling effect of the antenna 100 can be achieved. Due to the coupling, the antenna size can be reduced even if a metal frame is used. In some embodiments, the second element 120 can be curved. In some embodiments, the second element 120 can be formed into an "S" shape and can include a first portion 122, a second portion 124 substantially perpendicular to the first portion 122, a third portion 126 substantially parallel to the first portion 122 and perpendicular to the second portion 124, a fourth portion 128 substantially parallel to the second portion 124 and perpendicular to the third portion 126, and a fifth portion 129 substantially parallel to the first portion 122 and the third portion 126 and perpendicular to the fourth portion 128. The first portion 122 can extend in a first direction (such as, X direction). The second portion 124 can extend from the end of the first portion 122 away from the second member 116 in a direction perpendicular to the first direction (e.g., Y direction). The third portion 126 can extend from the end of the second portion 124 away from the first portion 122 in a direction opposite to the first direction. The fourth portion 128 may extend in the second direction from the end of the third portion 126 away from the second portion 124. The fifth portion 129 may extend in the first direction from the end of the fourth portion 128 away from the third portion and connected to the second portion 320 of the module 300. In some embodiments, the second member 116 of the first element 110 may be formed in a straight shape. The second member 116 may extend in a third direction (such as a Z direction) perpendicular to the first direction and the second direction, wherein one end of the second member 116 is connected to the feed point 112, and the other end of the second member 116 is spaced apart from the end of the first component 122 away from the second component 124.

[0077] In some embodiments, the length of the second member 116 can be shorter than the length of the second element 120. Shorter elements can be configured to be used for communication in higher frequency bands, and longer elements can be configured to be used for communication in higher and lower frequencies. In some embodiments, the first element 110 can be configured to work at a first frequency, and the second element 120 can be configured to work at a first frequency and a second frequency. In some embodiments, the first frequency can be higher than the second frequency. In some embodiments, the range of the first frequency can be 2.4GHz-2.48GHz, and the range of the second frequency can be about 5GHz-7GHz. The size and shape of the components of the first element 110 and / or the second element 120 can be adjusted to realize wireless communication in various frequency bands, and can be changed according to the frequency band.

[0078] In some embodiments, the first member 114, the second member 116 and / or the second element 120 can be a conductive film, a conductive sheet or a conductive line, and can be implemented in various forms. In one embodiment, the first member 114, the second member 116 and / or the second element 120 can be located on a portion of the conductive material of the housing. In one example, the first member 114, the second member 116 and / or the second element 120 can be located on a metal frame. In another embodiment, the first member 114, the second member 116 and / or the second element 120 can be located on a flexible printed circuit (FPC). For example, the first member 114, the second member 116 and / or the second element 120 can be a metal pattern printed on a flexible film. The flexible film can be directly or indirectly attached to the protruding portion A of the housing 200, and can be arranged close to the module 300, or can be used as an intermediate substrate for transferring the metal pattern to the protruding portion A. In another embodiment, the first member 114, the second member 116 and / or the second element 120 may be located in a molded interconnect device (MID) of another technology, or may be integrated in a molded interconnect device (MID) of another technology. For example, the first member 114, the second member 116 and / or the second element 120 may be a metal pattern formed on a doped thermoplastic material by a laser direct structuring (LDS) process (that is, located on a laser direct structuring material). In addition, for example, these elements may be directly printed on the protruding portion A of the housing 200 by LDS. In this case, at least a portion of the protruding portion A may be a thermoplastic material or glass doped with a metal inorganic compound. It should be understood that the MID may be implemented by other suitable technologies not listed herein. When the first member 114, the second member 116 and / or the second element 120 are conductive films or conductive sheets, they may be arranged to be parallel, perpendicular or at any angle to the surface of the housing 200. In some embodiments, at least a portion of the first member 114 , at least a portion of the second member 116 , and / or at least a portion of the second element 120 may be printed directly on the housing 200 .

[0079] In addition, Figure 6 , antenna 100 (antennas 100-1 and 100-2) are shown as monopole antennas, such as λ / 4 monopole type antennas, however, antenna 100 may be other types, such as slot antennas, loop antennas, inverted-L antennas, inverted-F antennas, and meander antennas.

[0080] In addition, if Figure 6As shown, in some embodiments where the UE 10 is a head-mounted device (such as glasses), the UE 10 may also include a lens 500 disposed in front of the user's eyes when the UE 10 is worn by the user, and the antenna 100 is placed adjacent to the lens 500. Here, the antenna 100 placed adjacent to the lens 500 may refer to an antenna structure 100 placed directly adjacent to the lens 500, for example, attached to the lens 300 or adjacent to the lens 500, or placed close to the lens 500, for example, close to the lens 500, but separated from the lens 500 by a narrow gap or a thin material layer. In one embodiment, the housing 200 includes a lens frame 501 configured to fix the lens 500 to the housing 200, and at least a portion of the antenna is attached to the lens frame 501. In this article, the lens frame 501 may surround the lens 500, or may be arranged only along a portion of the periphery of the lens 500. The lens 500 may be fixedly or detachably connected to the lens frame 501, and may be replaced by another lens 500 when necessary. In some embodiments, there may be no lens frame, and the lens is directly connected to the housing at one or more points along its periphery. The portion of the lens frame 501 attached to the antenna 100 may represent the first member 114, the second member 116, and / or the second element 120. In some embodiments, the first member 114, the second member 116, or the second element 120 is not attached to the lens frame 501. In some embodiments, the attachment between the lens 500 or lens frame 501 and the first member 114, the second member 116, or the second element 120 may represent that the corresponding member or element is printed on the lens 500 or lens frame 501.

[0081] Both the lens 500 and the lens frame 501 may provide an area where the antenna 100 is disposed, in particular, the first member 114, the second member 116, and / or the second element 120. That is, the housing 200 near a portion of the lens 500 or the lens frame 501 may be used as a portion of the aforementioned protruding portion A. In some embodiments, at least a portion of the first member 114 is disposed adjacent to the lens 500. In some embodiments, at least a portion of the second element 120 may be disposed adjacent to the lens 500. In some embodiments, at least a portion of the second member 116 may be disposed adjacent to the lens 500.

[0082] As described above, the shapes and sizes of the second member 116 and the second element 120 may be adjusted to enable wireless communications in various frequency bands. Figure 7 Shown according to Figure 6 The antenna shown is an example of the dimensions of the antenna 100 that enables multi-band (such as dual-band) wireless communications in 2.4 GHz-2.48 GHz and 5 GHz-7 GHz. Figure 7, the antenna 100 includes a first antenna 100-1 disposed near a module 300 disposed on a first side (e.g., left side) of the UE 10 and a second antenna 100-2 disposed near a module 300 disposed on a second side (e.g., right side) of the UE 10. Figure 7 The antenna 100 is shown to be provided in two, but this is shown only by way of illustration and not limitation, and the number may be more than three or may be one. In this example, the shape of the antenna 100 is as follows Figure 6 and Figure 7 As shown, the size of the antenna 100 is as follows Figure 7 As shown. The second member 116 is formed to be straight, and the second element 120 is formed to be bent into an "S" shape and has a first portion 122, a second portion 124, a third portion 126, a fourth portion 128, and a fifth portion 129. The second member 116 has a length of 7 mm and a width of 2.3 mm. The first portion 122 of the second element 120 has a length of 9 mm. The second portion 124 has a length of 5.5 mm. The third portion 126 has a length of 8 mm. The fourth portion 128 has a length of 7 mm. The fifth portion 129 has a length of 4 mm. Each of the first portion 122, the second portion 124, the third portion 126, the fourth portion 128, and the fifth portion 129 has a width of 1 mm.

[0083] Figure 8 and Fig. 9 The simulation results of the current distribution of antenna 100-1 and antenna 100-2 are shown as follows. Figure 7 As shown, each has a frequency of 2.44 GHz (in the 2.4 GHz band) and 5.5 GHz and 6.5 GHz (in the 5-7 GHz band) under feed. Figure 8 and Fig. 9 , (a) shows the current distribution corresponding to 2.44 GHz feeding, (b) shows the current distribution corresponding to 5.5 GHz feeding, (c) shows the current distribution corresponding to 6.5 GHz feeding, and (d) shows a reference bar of the relative current intensities in (a) to (c). Figure 8 and Fig. 9 As shown, in the case of 2.44 GHz feeding, a strong current is confined in the second element 120. In the case of 5.5 GHz and 6.5 GHz feeding, a strong current is confined not only in the second element 120 but also in the second member 116 and the conductive area (metal area) around the antenna 100. During wireless communication in both frequency bands, interference between the two antennas is small.

[0084] Fig.10 Shown as Figure 6 and Figure 7The simulation results of the impedance (S11 and S22) of the antennas 100-1 and 100-2 and the isolation between the entire 2.4 GHz band and the 5 GHz-7 GHz band are shown. It shows that in both the antenna 100-1 and the antenna 100-2, the isolation between the antenna 100-1 and the antenna 100-2 is below -30 dB in the resonant frequencies of 2.4 GHz-2.48 GHz and 5.15 GHz-7.15 GHz, which provides a fairly ideal quality for the wireless signal.

[0085] Fig.11 Show Figure 6 and Figure 7 The simulation results of the efficiency of antennas 100-1 and 100-2 in the entire 2.4 GHz and 5 GHz-7 GHz frequency bands are shown. Fig.11 As shown, both antenna 100 - 1 and antenna 100 - 2 have an efficiency of about −6 dB in the 2.4 GHz band and an efficiency of about −4 dB to 5 dB in the 5 GHz to 7 GHz band, which provide a fairly ideal quality for wireless signals.

[0086] Fig.12 and Fig.13 Shown as Figure 6 and Figure 7 Simulation results of the radiation patterns of antennas 100-1 and 100-2 are shown, each antenna having a frequency of 2.44 GHz (in the 2.4 GHz band) and 5.5 GHz and 6.5 GHz (in the 5 GHz-7 GHz band) under feed. The upper figure shows a top view of the radio pattern and the lower figure shows a side view of the radio pattern. The simulation results show a fairly ideal radiation pattern and good performance.

[0087] As shown above, simulation results show that the multi-band antenna 100 has good antenna characteristics for 2.4 GHz and 5 GHz-7 GHz wireless signals, which are quite common in standards such as Bluetooth and Wi-Fi.

[0088] It should be understood that the foregoing embodiments and simulations of specific configurations of the antenna are merely examples. The UE may be implemented in forms other than a head-mounted device, such as a smartphone, a pager, a laptop computer, a desktop computer, or any computing device that supports wireless communication. In addition, in an embodiment where the UE is a head-mounted device, the head-mounted device may be implemented in forms other than glasses, such as a helmet, a monocle, goggles, a headband, or a VR / AR head display. The antenna may also be applied to any other wearable device with a lens. The lenses and modules may also be implemented in other forms. For example, an electronic helmet may have a mask that carries an image projected from a projector, or other glasses may have a camera located in the right front corner or the left front corner for capturing images. In addition, the antenna may have other shapes or sizes. Those skilled in the art may apply the various features of the antenna described in the above embodiments to other embodiments or implementations with necessary modifications to achieve the beneficial effects as described above.

[0089] The embodiments of the present disclosure are described in a progressive manner, and each embodiment emphasizes the differences from other embodiments. Therefore, for the same or similar components, one embodiment may represent other embodiments.

[0090] According to the description of the disclosed embodiments, those skilled in the art can implement or use the present disclosure. For those skilled in the art, various modifications to these embodiments may be obvious, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure is not limited to the embodiments described herein, but confirms the widest scope according to the principles and novel features disclosed in the present disclosure.

[0091] Industrial Applicability

[0092] Various embodiments may be applied to various wearable user devices, for example, head-mounted devices such as glasses, helmets, monocles, goggles, headbands, or VR, AR, MR, or XR headsets, as well as other user devices configured for wireless communication, such as smartphones, pagers, laptops, desktop computers.

Claims

1. A head mounted device, comprising: a housing comprising a conductive material; a module comprising a first portion, the first portion comprising a non-conductive material and the module being disposed on a portion of the housing that is away from the user's head when the head mounted device is worn by the user; as well as An antenna is arranged close to the module.

2. The head mounted device according to claim 1, wherein: The antenna is disposed proximate to the first portion.

3. The head mounted device according to claim 1, wherein: The module also includes a second portion, the second portion includes a conductive material, and the antenna is connected to the second portion.

4. The head mounted device according to claim 3, wherein: The antenna comprises: a first element including a feed point, a first member disposed on a first side of the feed point and connected to the second portion, and a second member disposed on a second side of the feed point; and A second element is disposed spaced apart from the second member and connected to the second portion.

5. The head mounted device according to claim 4, wherein: The second member is configured to be fed, and the second member is configured to be grounded.

6. The head mounted device according to claim 4, wherein: The second element is spaced apart from the second member on a side of the second member remote from the feed point.

7. The head mounted device according to claim 4, wherein: The first member and the second element are connected to respective distal locations of the second portion.

8. The head mounted device according to claim 4, wherein: An edge of the second element and an edge of the second member are turned toward each other.

9. The head mounted device according to claim 4, wherein: The second member has a length shorter than a length of the second element.

10. The head mounted device according to claim 4, wherein: The first element is configured to operate at a first frequency, and the second element is configured to operate at the first frequency and at a second frequency.

11. The head mounted device according to claim 10, wherein: The first frequency is higher than the second frequency.

12. The head mounted device according to claim 1, wherein: The module is selected from at least any one of the group consisting of an optical module and a camera module.

13. The head mounted device according to claim 1, wherein: The conductive material includes metal.

14. The head mounted device according to claim 1, wherein: The non-conductive material comprises plastic.

15. An antenna, comprising: A first element, the first element comprising: Feed point; a first member disposed on a first side of the feed point and connected to a portion of a user equipment comprising a conductive material, and a second member disposed on a second side of the feed point; and A second element is disposed to be spaced apart from the second member and connected to another portion of the user device including a conductive material.

16. The antenna according to claim 15, wherein: The second member is configured to be fed, and the second member is configured to be grounded.

17. The antenna according to claim 15, wherein: The second element is spaced apart from the second member on a side of the second member remote from the feed point.

18. The antenna according to claim 15, wherein: The one portion and the other portion are distant from each other.

19. The antenna according to claim 15, wherein: An edge of the second element and an edge of the second member are turned toward each other.

20. The antenna according to claim 15, wherein: The first element is configured to operate at a first frequency, and the second element is configured to operate at the first frequency and a second frequency lower than the first frequency.

21. A user equipment, comprising: a first portion, the first portion comprising a non-conductive material; a second portion, the second portion comprising a conductive material; as well as An antenna, the antenna being arranged close to the first portion, the antenna comprising: A first element, the first element comprising: Feed point; a first member disposed on a first side of the feed point and connected to a first location of the second portion; and a second member disposed on a second side of the feed point; and A second element is disposed at a second position spaced apart from the second member and connected to the second portion.

22. The user equipment according to claim 21, wherein: The second member is configured to be fed, and the second member is configured to be grounded.

23. The user equipment according to claim 21, wherein: The first position and the second position are remote from each other.

24. The user equipment according to claim 21, wherein: An edge of the second element and an edge of the second member are turned toward each other.

25. The user equipment according to claim 21, wherein: The first element is configured to operate at a first frequency, and the second element is configured to operate at the first frequency and a second frequency lower than the first frequency.

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