A Novel Three-Port Combiner Based on Coaxial Cavity

Abstract:

In this paper, a novel three-port combiner based on coaxial cavity is presented, which consists of a band-pass filter with a transmission zero and a ultra-wideband band-stop filter, and the combiner is different to the conventional combiner based on microstrip or stripline. The design and simulated results show that the novel combiner has a good performance, which are insert loss more than -0.5dB and return loss less than -20dB between the GSM/DCS/TD band (800-2170MHz) and WLAN band (2400-2500MHz), the isolation in both bands less than -85dB, respectively. In addition, the performances of the novel combiner are demonstrated experimentally, the measured results have good agreement with simulated results.

• Periodical: Advanced Materials Research (Volumes 605-607)
• Pages: 1924-1928
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.605-607.1924
• Online since: December 2012
• Authors: Su Nan Zhang, Qiang Ye, Chang Wei Luo
• Keywords: Bandpass Filter (BPF), Bandstop Filter, Coaxial Cavity, Combiner

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