首页|A Triplexer Antenna With High Isolation for BeiDou Communication and Navigation Applications
A Triplexer Antenna With High Isolation for BeiDou Communication and Navigation Applications
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NETL
NSTL
IEEE
In response to the insufficient isolation of microstrip triplexers, this work presents a design method for a tri-band antenna integrated with a passive triplexer. Based on the analytic resonant characteristics of stepped impedance resonators (SIRs), the combination of SIR and transmission lines is used to meet the impedance conditions required by the common junction of the triplexer. It has a simple structure, straightforward design equations, and high layout flexibility. A shorting pin is used to directly cascade the triplexer with a tri-band antenna, realizing the single printed circuit board (PCB) integration of the triplexer, antenna element, and feeding structure. Focusing on the application requirements of BeiDou communication and navigation systems, a circularly polarized triplexer antenna with isolation greater than 52 dB between the transmitting and receiving ports is proposed.
NETL
NSTL
IEEE
