TW201640742A - Antenna design - Google Patents

Abstract

A network device comprising: a first radio module configured to transmit and receive first radio signals in a first frequency band; a first antenna array comprised of a first plurality of polarized antennas and configured to transmit and receive the first radio signals for the first radio module in the first frequency band; a second radio module configured to transmit and receive second radio signals in the first frequency band; a second antenna array comprised of a second plurality of polarized antennas and configured to transmit and receive the second radio signals for the second radio module in the first frequency band; wherein, in operation, the first radio module and the second radio module function concurrently using the first frequency band while at least 40 dB of antenna isolation is maintained between the first antenna array and the second antenna array.

Description

Antenna design

The invention relates to antenna design.

Background of the invention

One of the areas of ongoing research and development is access point and antenna design. In particular, there is a need for access points having radios that can operate in parallel in the same frequency band.

The prior art of the related art and the limitations associated with the related art are intended to be illustrative and non-exclusive. Other limitations of the related art will become apparent to those skilled in the art after studying the specification and studying the drawings.

Summary of invention

The following embodiments and their aspects are intended to be illustrative and illustrative, and not restrictive. In various implementations, one or more of the above problems have been addressed, while other implementations are directed to other improvements.

Various implementations include access points and antenna designs for access points having wireless that can operate in parallel in the same frequency band Electricity.

These and other advantages will become apparent to those skilled in the art of the <RTIgt;

100, 500‧‧ ‧ perspective

102, 202, 304, 402, 502, 602, 702, 802, 902‧‧‧ first conductive plate

104, 204, 302, 404, 504, 604, 704, 804, 904‧‧‧ second conductive plate

106‧‧‧Center joint

108, 120‧‧‧First antenna blade

110, 122‧‧‧second antenna blade

112, 124‧‧‧ third antenna blade

116, 126, 410, 414, 418, 422‧‧‧ arms

118, 128, 408, 412, 416, 420‧‧ wing

200, 600‧‧‧ top view

206, 306, 406‧‧ ‧ joints

208, 214, 308, 314‧‧‧ first leaves

210, 216, 310, 316‧‧‧ second blade

212, 218, 312, 318‧‧‧ third blade

220, 320‧‧‧ axis

300, 700‧‧ ‧ bottom view

400, 800‧‧‧ front view

506, 512‧‧‧ edge

508, 514‧‧‧ first width

510, 516‧‧‧ second width

518, 520, 606, 608, 706, 708‧‧

610, 710, 806, 906‧‧ channels

900‧‧‧ Rear view

Figure 1 depicts a perspective view of an example of a polarized antenna.

Figure 2 depicts a top view of an example of a polarized antenna.

Figure 3 depicts a bottom view of an example of a polarized antenna.

Figure 4 depicts a front view of an example of a polarized antenna.

Figure 5 depicts a perspective view of another example of a polarized antenna.

Figure 6 depicts a top view of another example of a polarized antenna.

Figure 7 depicts a bottom view of another example of a polarized antenna.

Figure 8 depicts a front view of another example of a polarized antenna.

Figure 9 depicts a rear view of another example of a polarized antenna.

Detailed description of the preferred embodiment

FIG. 1 depicts a perspective view 100 of an example of a polarized antenna. A polarized antenna may be implemented as part of an access point for transmitting and receiving data in accordance with an applicable agreement for forming a portion of a wireless network, including WiFi, such as the 802.11 standard, which are hereby incorporated by reference. . Depending on the particular considerations or other considerations, the polarized antennas may be positioned to be horizontally polarized with respect to the access point.

In a particular implementation, the polarized antenna is wirelessly coupled via a Wi-Fi connection to an end user device that acts as or includes the station. As used in this document, a station may be referred to as having a Media Access Control (MAC) address and to none. A device of a physical layer (PHY) interface of a line medium that complies with the IEEE 802.11 standard. Thus, for example, an end user device may be referred to as a station when applicable. IEEE 802.11a-1999, IEEE 802.11b-1999, IEEE 802.11g-2003, IEEE 802.11-2007, and IEEE 802.11n TGn draft 8.0 (2009) are incorporated by reference. As used in such documents, systems that are compatible with or comply with the 802.11 standard are subject to the requirements and/or recommendations of the incorporated documents or from at least some of one or more of the earlier draft requirements and/or recommendations of the literature. And includes Wi-Fi systems. Wi-Fi is a non-technical description commonly associated with the IEEE 802.11 standard, as well as Wi-Fi Protected Access (WPA) and WPA2 security standards, and the Extensible Authentication Protocol (EAP) standard. In an alternate embodiment, the station may comply with standards other than Wi-Fi or IEEE 802.11, may be referred to as a different name than "station", and may have different interfaces to wireless or other media.

In a particular implementation, the polarized antenna is part of an IEEE 802.3 compliant access point. IEEE 802.3 is a working group, and a set of IEEE standards generated by the working group defining the MAC of the wired Ethernet network and the data link layer. This is typically a local area network technology with some WAN applications. Physical connections are typically made between various types of copper or fiber optic cables between nodes and/or infrastructure devices (hubs, switches, routers). IEEE 802.3 is a technology that supports the IEEE 802.1 network architecture. As is well known in the related art, IEEE 802.11 is a working group and standard set for implementing wireless local area network (WLAN) computer communications in the 2.4, 3.6, and 5 GHz bands. The basic version of the standard IEEE 802.11-2007 has subsequent amendments. These standards are provided for use with Wi-Fi branded wireless networking products. basis. IEEE 802.1 and 802.3 are incorporated by reference.

In a particular implementation, the polarized antenna is coupled to the radio. Depending on the implementation considerations or other considerations, the radio can be a 2.4 GHz to 5 GHz dual band radio or just a 5 GHz radio. In addition, depending on the particular considerations or other considerations, the polarized antenna may be included as part of an access point that includes radios operating in parallel in the same frequency band. For example, a polarized antenna can be included as part of an access point that includes a first radio operating in parallel with a second radio operating in the 5 GHz band in the 5 GHz band. In another example, a polarized antenna can be included as part of an access point that includes a 2.4 GHz to 5 GHz dual band radio operating in parallel in the 5 GHz band or in parallel with only 5 GHz radio operating in the 5 GHz band.

The polarized antenna includes a first conductive plate 102 in a first antenna plane and a second conductive plate 104 in a second antenna plane. The first conductive plate 102 and the second conductive plate 104 are mounted together around the central joint 106. The joint may be fixed such that the first antenna plane and the second antenna plane are parallel to each other; or are flexible such that the first antenna plane and the second antenna plane intersect each other at the intersection line. In various implementations, the first conductive plate 102, the second conductive plate 104, and the central joint are at least partially comprised of a conductive material.

The first conductive plate 102 includes a first antenna blade 108, a second antenna blade 110, and a third antenna blade 112. Each of the first antenna blade 108, the second antenna blade 110, and the third antenna blade 112 includes a corresponding arm 116 and a wing portion 118. The corresponding arms of the first antenna blade 108, the second antenna blade 110, and the third antenna blade 112 are angled to each other around the center joint portion 106. Separated by ground. For example, the arms may be spaced apart from each other by 120° around the central joint 106. Each of the first antenna blade 108, the second antenna blade 110, and the third antenna blade 112 extends from each corresponding arm in a counterclockwise direction. As a result, the first conductive plate 102 can exhibit rotational symmetry around the center joint 106.

The second conductive plate 104 includes a first antenna blade 120, a second antenna blade 122, and a third antenna blade 124. Each of the first antenna blade 120, the second antenna blade 122, and the third antenna blade 124 of the second conductive plate includes a corresponding arm 126 and a wing portion 128. The corresponding arms of the first antenna blade 120, the second antenna blade 122, and the third antenna blade 124 of the second conductive plate are angularly spaced from each other around the center joint portion 106. For example, the arms can be spaced apart from each other by 120° around the central joint 106. Each of the first antenna blade 120, the second antenna blade 122, and the third antenna blade 124 of the second conductive plate 104 extends from each corresponding arm in a clockwise direction. As a result, the second conductive plate 104 can exhibit rotational symmetry around the center joint 106.

In a specific implementation, the corresponding arms of the first blades 108 and 120 of the first conductive plate 102 and the second conductive plate 104, the corresponding arms of the second blades 110 and 122 of the first conductive plate 102 and the second conductive plate 104, and/or Or the corresponding arms of the first conductive plates 102 and the third blades 112 and 124 of the second conductive plate 104 overlap each other such that they exhibit an axis around the center of the corresponding arm along the blade when viewed from a top view or a bottom view of the antenna Mirror symmetry. For example, the arms and wings of the third blade 112 of the first second conductive plate 102 and the arms and wings of the third blade 124 of the second conductive plate 104 may have the same size, and Extending in a clockwise and counterclockwise direction along the juxtaposition causes the arms and wings to exhibit mirror symmetry around the axis along the center of the arm when viewed from a top or bottom view of the antenna. In a particular implementation, the arms of the corresponding blade are 12 mm long, with each wing being 4 mm x 8 mm.

2 depicts a top view 200 of an example of a polarized antenna. The polarized antenna includes a first conductive plate 202 and a second conductive plate 204 that are coupled together at the joint 206. The first conductive plate 202 includes a first blade 208, a second blade 210, and a third blade 212. The first vane 208, the second vane 210, and the third vane 212 of the first conductive plate 202 include a wing portion extending from the arm in a counterclockwise direction. The second conductive plate 204 includes a first blade 214, a second blade 216, and a third blade 218. The first vane 214, the second vane 216, and the third vane 218 of the second conductive plate 204 include a wing portion extending from the arm in a clockwise direction. The first conductive plate 202 and the second conductive plate 204 are positioned such that the first blade 208 of the first conductive plate 202 and the corresponding arm of the first blade 214 of the second conductive plate 204 and the second blade 210 of the first conductive plate 202 The arm of the second blade 216 of the second conductive plate 204, the third blade 212 of the first conductive plate 202, and the arm of the third blade 218 of the second conductive plate 204 are overlapped. As a result, the mirror symmetry is exhibited corresponding to the first blade, the second blade, and the third blade about an axis (eg, 220) along the center of the arm of the corresponding blade.

FIG. 3 depicts a bottom view 300 of an example of a polarized antenna. The polarized antenna includes a second conductive plate 302 and a first conductive plate 304 that are coupled together at a joint 306. The second conductive plate 302 includes a first blade 308, a second blade 310, and a third blade 312. The first blade 308, the second blade 310, and the third blade 312 of the second conductive plate 302 are extended from the arm in a counterclockwise direction Wing. The first conductive plate 304 includes a first blade 314, a second blade 316, and a third blade 318. The first vane 314, the second vane 316, and the third vane 318 of the first conductive plate 304 include a wing portion extending from the arm in a clockwise direction. The second conductive plate 302 and the first conductive plate 304 are positioned such that the first blade 308 of the second conductive plate 302 and the corresponding arm of the first blade 314 of the first conductive plate 304 and the second blade 310 of the second conductive plate 302 The arm of the second blade 316 of the first conductive plate 304, the third blade 312 of the second conductive plate 302, and the arm of the third blade 318 of the first conductive plate 304 are overlapped. As a result, mirror symmetry is exhibited corresponding to the axes of the first, second, and third blades about the center of the arms of the corresponding blades (eg, 320).

4 depicts a front view 400 of an example of a polarized antenna. The polarized antenna includes a first conductive plate 402 and a second conductive plate 404 that are coupled together at a joint 406. The first conductive plate 402 includes a first blade wing portion 408, a second blade arm 410, a second blade wing portion 412, and a third blade arm portion 414. The second conductive plate 404 includes a first blade wing portion 416, a second blade arm portion 418, a second blade wing portion 420, and a third blade arm portion 422.

FIG. 5 depicts a perspective view 500 of another example of a polarized antenna. The polarized antenna can be implemented as part of an access point for transmitting and receiving data in accordance with a suitable protocol for forming a portion of a wireless network, including WiFi, such as the IEEE 802.11 standard. Depending on the particular considerations or other considerations, the polarized antenna can be positioned to be vertically polarized relative to the access point.

In a particular implementation, the polarized antenna is wirelessly coupled via a Wi-Fi connection to an end user device that acts as or includes the station. As in this document For use, a station can be referred to as a device having a medium access control (MAC) address and a physical layer (PHY) interface to a wireless medium that complies with the IEEE 802.11 standard. Thus, for example, an end user device may be referred to as a station when applicable.

In a particular implementation, the polarized antenna is part of an IEEE 802.3 compliant access point. IEEE 802.3 is a working group, and a set of IEEE standards generated by the working group defining the MAC of the wired Ethernet network and the data link layer. This is typically a local area network technology with some WAN applications. Physical connections are typically made between various types of copper or fiber optic cables between nodes and/or infrastructure devices (hubs, switches, routers). IEEE 802.3 is a technology that supports the IEEE 802.1 network architecture. As is well known in the related art, IEEE 802.11 is a working group and standard set for implementing wireless local area network (WLAN) computer communications in the 2.4, 3.6, and 5 GHz bands. The basic version of the standard IEEE 802.11-2007 has subsequent amendments. These standards provide the basis for wireless network products that use the Wi-Fi brand.

In a particular implementation, the polarized antenna is coupled to the radio. Depending on the implementation considerations or other considerations, the radio can be a 2.4 GHz to 5 GHz dual band radio or just a 5 GHz radio. In addition, depending on the particular considerations or other considerations, the polarized antenna may be included as part of an access point that includes radios operating in parallel in the same frequency band. For example, a polarized antenna can be included as part of an access point that includes a first radio operating in parallel with a second radio operating in the 5 GHz band in the 5 GHz band. In another example, the polarized antenna can be included as a Part of the point, the access point includes a 2.4 GHz to 5 GHz dual band radio operating in parallel in the 5 GHz band or in parallel with only 5 GHz radio operating in the 5 GHz band.

The polarized antenna includes a first conductive plate 502 and a second conductive plate 504. In various implementations, the first conductive plate 502 and the second conductive plate 504 are at least partially composed of a conductive material. The width of the first conductive plate 502 increases linearly along the edge 506 from the first width 508 to the second width 510. In a particular implementation, the edge 506 has a length of 8 mm, a first width 508 of 4 mm and a second width 510 of 6 mm. The width of the second conductive plate 504 increases linearly along the edge 512 from the first width 514 to the second width 516. In a particular implementation, the edge 512 has a length of 8 mm, a first width 514 of 4 mm, and a second width 516 of 6 mm.

The first conductive plate 502 includes a protrusion 518. The second conductive plate 504 includes a protrusion 520. The protrusions 518 and protrusions 520 have sides that face each other to form a channel. In a particular implementation, the protrusion 518 is smaller in size than the protrusion 520. The protrusions 518 and 520 extend from the first conductive plate 502 and the second conductive plate 504 to form a channel between the first conductive plate 502 and the second conductive plate 504.

FIG. 6 depicts a top view 600 of another example of a polarized antenna. The polarized antenna includes a first conductive plate 602 and a second conductive plate 604. The first conductive plate 602 includes a protrusion 606. The second conductive plate 604 includes a protrusion 608. The protrusions 606 and 608 extend from the first conductive plate 602 and the second conductive plate 604 to form a channel 610 between the first conductive plate 602 and the second conductive plate 604.

FIG. 7 depicts a bottom view 700 of another example of a polarized antenna. The polarized antenna includes a first conductive plate 702 and a second conductive plate 704. The first conductive plate 702 includes a protrusion 706. The second conductive plate 704 includes a protrusion 708. Protrusion 706 And 708 extend from the first conductive plate 702 and the second conductive plate 704 to form a channel 710 between the first conductive plate 702 and the second conductive plate 704.

FIG. 8 depicts a front view 800 of another example of a polarized antenna. The polarized antenna includes a first conductive plate 802 and a second conductive plate 804. Channel 806 is present between first conductive plate 802 and second conductive plate 804.

FIG. 9 depicts a subsequent view 900 of another example of a polarized antenna. The polarized antenna may include a first conductive plate 902 and a second conductive plate 904. Channel 906 is present between first conductive plate 902 and second conductive plate 904.

100‧‧‧ perspective

102‧‧‧First conductive plate

104‧‧‧Second conductive plate

106‧‧‧Center joint

108, 120‧‧‧First antenna blade

110, 122‧‧‧second antenna blade

112, 124‧‧‧ third antenna blade

116, 126‧‧‧ arms

118, 128‧‧‧ wing

Claims (1)

A network device comprising: a first radio module configured to transmit and receive a first radio signal in a first frequency band; a first antenna array consisting of a first plurality of polarized antennas And configured to transmit and receive the first radio signals for the first radio module in the first frequency band; a second radio module configured to transmit in the first frequency band and Receiving a second radio signal; a second antenna array consisting of a second plurality of polarized antennas and configured to transmit and receive the second radios for the second radio module in the first frequency band a signal; wherein, in operation, the first radio module and the second radio module function in parallel using the first frequency band, and at least 40 dB of antenna isolation is maintained between the first antenna array and the second antenna Between arrays.