Double feed-in flat-board antenna

Abstract

The invention provides a dual-feed plate antenna, which comprises a first resonant part, a second resonant part and a grounding part. The first resonant part provides a first radiation path and comprises a first feed part and a grounding end receiving-grounding reference position; wherein, the first feed part can receive and transmit a first antenna signal, so that the first antenna signal can be transmitted to the first radiation path. The second resonant part provides a second radiation path and a third radiation path, and comprises a second feed part which can respectively receive and transmit a second antenna signal and a third antenna signal, so that the second antenna signal and the third antenna signal can be correspondingly transmitted to the second radiation path and the third radiation path. The grounding part receives the grounding reference position and is arranged between the first resonant part and the second resonant part. The dual-feed plate antenna can cover the following communication frequency bands: GSM850, GSM900, GPS, DCS, PCS and UMTS.

Description

technical field [0001] The invention relates to a multi-frequency panel antenna. And in particular, the present invention relates to a dual-feed panel antenna. Background technique [0002] With the development of wireless communication, the application of wireless communication is becoming more and more extensive, and the demand for communication channels is increasing day by day. One of the solutions is that more and more unused frequencies are released for use. In order to effectively utilize the available communication frequency bands, the newly released communication frequency bands are often close to the original communication frequency bands, thus creating a need for communication isolation. In terms of product integration design requirements, wireless communication products are also required to have multi-frequency communication functions, so that the above-mentioned wireless communication products need to have antennas that can use multiple communication frequency...

AI Technical Summary

Problems solved by technology

In the case of dual-feed or multi-feed antennas, where the individual antennas electrically connected to each feed cable communicate simultaneously is the norm, however this can cause mutual interference

[0003] In order to avoid this kind of interference, the known solution is to space the antenna at a distance of more than 1 / 4 to 1 / 2 of the longest wavelength in the communication frequency band it uses, so as to ensure that the interference can be reduced to a tolerable range , but increases the overall size of the antenna

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