A COMPACT HIGH-ISOLATION PARALLEL COUPLER WITH pi-SHAPED STRUCTURE

作者：Chen Dong Zhou^*; Wang Xin Huai; Wang Li Hong; Shi Xiao Wei; Yang Yue Yan

来源：Microwave and Optical Technology Letters, 2009, 51(3): 663-666.

DOI：10.1002/mop.24115

• pi-shaped structure
• RPC
• high isolation
• high directivity
• parallel coupler

A compact microstrip parallel coupler with high isolation is presented in this article. Adopting reflected power canceller (RPC) approach, the developed coupler with pi-shaped structure not only, effectiely enhance the directivity of the coupler but also compact size. For verification purposes, a proposed parallel coupler is fabricated and measured at 915 MHz. The proposed couplers achieve a physical size reduction of almost 35% with the performance competed with the conventional one. Moreover, the proposed parallel coupler ran obtain excellent isolation of -58.4 dB and directivity of -40.4 dB at 915 MHz. Simulated results are in good agreement with the measured results, which verified the reliability of the designed coupler.

• 出版日期2009-3
• 单位西安电子科技大学