Plane-type omnibearing dipole duplexing antenna

Abstract

The invention provides a plane-type omnibearing dipole duplexing antenna, and the antenna includes a dielectric plate, a first resonator, a second resonator, a third resonator, an antenna arm, and a metal base plate. The first resonator, the second resonator, the third resonator and the antenna arm are disposed on the top surface of the dielectric plate, and the metal bottom plate is provided witha slot. The position where the slot is mapped on the top surface of the dielectric plate equally divides the antenna arm. The first resonator is of a three-terminal structure, wherein the first end passes through the position where the slot is mapped on the top surface of the dielectric plate, the second end is opposite to one end of the second resonator, and the third end is opposite to one endof the third resonator. The second resonator is connected with a low-frequency port, and the third resonator is connected with a high-frequency port. According to the invention, a duplexer and the antenna are integrated. The first resonator in the invention serves as the first stage of the filter and the feeder of the antenna, thereby further reducing the size and reducing the loss.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a planar omnidirectional dipole duplex antenna. Background technique [0002] With the development of 3G, 4G and the upcoming 5G, the duplex of sending and receiving is becoming more and more important, because it can greatly improve the channel capacity of the communication system. [0003] In a communication system, ensuring that channels are independent and do not interfere with each other is the key to achieving duplex transmission and reception. In a frequency-division duplex system, the transceiver channels occupy different frequencies. To ensure channel independence, it is necessary to ensure the inter-frequency isolation between the transceiver antennas, and the improvement of the isolation is initially achieved by directly cascading duplexers with antennas. way to achieve. This method can indeed reduce interference and increase capacity, but this method ...

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Problems solved by technology

[0004] In the prior art, the integrated design between the antenna and the duplexer is usually to remove one port from the antenna and the duplexer for direct connection, but this method still needs a connecting line, and the antenna's feed structure and duplexer The resonant structure of the antenna system remains relatively independent, the degree of fusion is low, and the size reduction is limited; at the same time, due to the introduction of the duplexer, the overall structure of the antenna system is complicated and the difference loss is relatively large

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