Radio frequency antenna device

A technology of radio frequency antenna and antenna unit, which is applied in the field of radio frequency communication to avoid loss, ensure radiation efficiency, and avoid impedance mismatch.

CN107978847AInactive Publication Date: 2018-05-01SHENZHEN SHENGLU IOT COMM TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2018-05-01
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention relates to a radio frequency antenna device. The radio frequency antenna device comprises a substrate and at least one antenna unit arranged on the substrate, each antenna unit comprises one radiation portion and one conductor portion, each radiation portion is located above the substrate and is separated from the substrate, one end of each conductor portion is connected witheach radiation portion, the other end of each conductor portion is supported on the substrate, and the width of at least one part of each conductor portion is gradually increased in a direction beingfar away from each radiation portion. The width of at least one part of each conductor portion is gradually increased in the direction being far away from each radiation portion to allow the impedance continuity of the portion of the conductor portion to be smoother with frequency change so as to gradually reduce the sensitivity of the conductor portion for the frequency change and ensure the work stability of the antenna device. Besides, in the process of implementation of the functions, one portion of the conductor portion is only gradually widened, the space of the antenna cannot be influenced and the miniaturization of the antenna device can be achieved.
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Description

technical field

[0001] The invention relates to the field of radio frequency communication, in particular to a radio frequency antenna device. Background technique

[0002] With the development of Internet technology, radio frequency technology is more and more widely used in my country's wireless communication system. Currently, common radio frequency communication technologies include Bluetooth radio frequency technology, WLAN radio frequency communication technology, ultra-wideband radio frequency technology, and the like. The most important part of a wireless communication system is the antenna. If a system with good performance does not have a suitable antenna, the performance of the entire system will be seriously affected. As the density of communication sites increases and the amount of communication increases, the wireless communication system puts forward higher requirements for the stability of the antenna. Moreover, with the development of intelligent and integ...

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Embodiment Construction

[0022] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0023] see Figure 1-3 , the radio frequency antenna device 1 according to the first embodiment of the present invention includes a substrate 11 and at least one antenna unit 12 disposed on the substrate 11; And spaced apart from the substrate 11 , one end of the conductor part 122 is connected to the radiation part 121 , and the other end is supported on the substrate 11 , and the width of at least a part of the conductor part 122 gradually increases along the direction away from the radiation part 121 . Wherein, the radiation part 121 is connected to the feed source and the ground through the co...