The disclosure relates to a virtual reality technology; more particularly, the disclosure relates to a virtual reality device with a relatively wide antenna transmission range.
People skilled in the virtual reality field are able to apply a wireless communication technology to replace physical transmission lines, so as to improve the convenience and flexibility of using virtual reality devices (for instance, communication glasses). In response to requirements for user convenience, a general virtual reality device may be equipped with a Sub-6G antenna and an mmWave antenna, so as to provide a variety of frequency bands. Specifically, the frequency band of the Sub-6G antenna is approximately within a range from 4501 Hz to 6 GHz (including 4G, Wi-Fi, Bluetooth, and so on), and the Sub-6G antenna requires a relatively large accommodation space; the frequency band of the mmWave antenna is approximately within a range from 24 GHz to 52 GHz, and the mmWave antenna is a beamforming antenna having directionality. However, the way to arrange a plurality of the antennas in the virtual reality device is subject to mutual crosstalk between the antennas, whereby the transmission range and radiation characteristics of the antennas may be affected.
In view of the above, a virtual reality device is provided in the disclosure, where a plurality of antennas are combined to improve a transmission range and radiation characteristics of the antennas.
A virtual reality device provided herein includes a main body portion, a plurality of first-type antennas, and a plurality of second-type antennas. The main body portion has a first side eyeglass frame, a second side eyeglass frame, and a connection part. The connection part is connected to the first side eyeglass frame and the second side eyeglass frame. The second-type antennas and the corresponding first-type antennas are respectively disposed on a first side of the first side eyeglass frame, on a second side of the second side eyeglass frame, and on the connection part. The first side of the first side eyeglass frame is opposite to the second side of the second side eyeglass frame.
In light of the foregoing, the second-type antennas and the corresponding first-type antennas of the virtual reality device provided herein may be combined and disposed on the main body portion, so as to maintain the characteristics of the first-type antennas and the second-type antennas and further improve a transmission coverage and radiation intensity.
Some embodiments provided in the disclosure are described in detail below with reference to the accompanying drawings, and the same components in the following description and in different drawings will be denoted by the same reference numbers and signs. These embodiments are a part of the invention and do not disclose all implementation manner of the invention. More particularly, these embodiments serve to exemplify what is claimed in the disclosure.
Specifically, the first-type antennas A1 may be the Sub-6G antennas, and the second-type antennas A2 may be the mmWave antennas. In the present embodiment, the first-type antennas A1 (i.e., the Sub-6G antennas) require a relatively large accommodation space due to the resonance frequencies of the first-type antennas A1. In addition, the second-type antennas A2 (i.e., the mmWave antennas) are the beamforming antennas having directionality. Therefore, the second-type antennas A2 are required to be disposed at a suitable location to provide a relatively wide transmission range.
To be specific, if a user arranges the first-type antennas A1 and the second-type antennas A2 on the main body portion 100 based on the characteristics of the first-type antennas A1 (that i.e., limiting the arrangement of the second-type antennas A2), the transmission range of the second-type antennas A2 is reduced, thereby generating a blind spot of the second-type antennas A2 in terms of transmission. In another aspect, if the user arranges the first-type antennas A1 and the second-type antennas A2 on the main body portion 100 based on the characteristics of the second-type antennas A2 (i.e., limiting the arrangement of the first-type antennas A1), the radiation characteristics of the first-type antennas A1 may be decreased.
Accordingly, if the second-type antennas A2 and the corresponding first-type antennas A1 are combined and disposed at the main body portion 100, the characteristics of 1, a the first-type antennas A1 and the second-type antennas A2 in the virtual reality device 10 may be maintained at the same time. Particularly, as shown in
In an embodiment, the first-type antennas A1 and the second-type antennas A2 may be disposed on the main body portion 100, respectively. For instance, the second-type antennas A2 may be disposed on the connection part 120 alone. The manner of arranging the first-type antennas A1 and the second-type antennas A2 may be determined by the user and is not subject to certain restrictions.
The first-type antennas A1 may be coupled to the mainboard Bm through the connector CON. To be specific, the first-type antennas A1 may transmit or receive a first-type radio frequency signal via the connector CON. Specifically, the first-type radio frequency signal may be fed into the first-type antennas A1 (e.g., the Sub-6G antennas) through the connector (e.g., a shrapnel, a screw lock, or a coaxial cable), so as to excite the first-type antennas A1 directly or in a coupling manner to reach a working frequency band of the first-type radio frequency signal (Sub-6G).
In another aspect, the radio frequency signal processing circuits 300 and 300′ may be electrically coupled to the second-type antennas A2 through a conductive wire W. Accordingly, the second-type antennas A2 may transmit or receive a second-type radio frequency signal through the conductive wire W and the radio frequency signal processing circuits 300 and 300′. Specifically, the second-type radio frequency signal may be fed into the second-type antennas A2 (e.g., the mmWave antennas) through the radio frequency signal processing circuits 300 and 300′ and the conductive wire W, such as a coaxial cable or a low-loss transmission line made of liquid crystal polymer (LCP), modified polyimide, or modified polyimide resin (MPI), so as to excite the second-type antennas A2 directly or in a coupling manner to reach a working frequency band of the second-type radio frequency signal (mmWave).
It is worth mentioning that the working frequency band of the first-type radio frequency signal is different from that of the second-type radio frequency signal. For instance, the transmission frequency band of the first-type antennas A1 (e.g., the Sub-6G antennas) is approximately within a range from 450 MHz to 6 GHz; the transmission frequency band of the second-type antennas A2 (e.g., the mmWave antennas) is approximately within a range from 24 GHz to 52 GHz. It may thus be learned that the first-type antennas A1 and the second-type antennas are respectively coupled to two independent signal sources. Accordingly, the two signal sources may respectively provide the first-type radio frequency signal and the second-type radio frequency signal with different working frequency bands to the first-type antennas A1 and the second-type antennas A2.
Thereby, the virtual reality device 10 may apply the first-type antennas A1 and the second-type antennas A2 with different working frequency bands to meet the increasing communication demands, and through the combination of the two types of antennas, the characteristics of the two types of antennas may be maintained, and the transmission coverage and the radiation intensity of the virtual reality device 10 may be improved.
With reference to
In addition, with reference to
Thereby, the virtual reality device 50 may cope with the development of the small-sized antennas through placing the first-type antenna A1 and the corresponding second-type antenna A2 on the periphery of the first side eyeglass frame 511 or the second side eyeglass frame 522, and the elements required for placing the antennas may be reduced. As shown in
To sum up, the second-type antennas and the corresponding first-type antennas of the virtual reality device provided herein may be combined and disposed on the main body portion, so as to maintain the characteristics of the first-type antennas and the second-type antennas and further improve the transmission coverage and the radiation intensity.
This application claims the priority benefit of U.S. provisional application Ser. No. 63/350,872, filed on Jun. 10, 2022. The entirety of the above-mentioned patent application is hereby incorporated by reference herein and made a part of this specification.
Number | Date | Country | |
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63350872 | Jun 2022 | US |