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A novel top-sleeve monopole in two parallel plates

By Zhi Ning Chen, Kazuhiro Hirasawa and Ke Wu


Abstract—A novel top-sleeve monopole antenna in two parallel plates is presented, which is developed to enhance its impedance bandwidth in a significant manner. By the introduction of a sleeve into a common SMA connector with a thin dielectric jacket, a no-ticeably broad bandwidth on the order of up to 70 % is achieved for the proposed antenna. An eigenmode expansion technique is used to simulate impedance characteristics of the top-sleeve monopole. Effects of geometric parameters of the structure, such as the sleeve length, monopole length, and the plate spacing on its impedance characteristics, are investigated. On the basis of our theoretical studies, an experimental prototype with bandwidth of 50 % is de-signed and its characteristics are confirmed experimentally. Index Terms—Impedance matching, mode match method, monopole antennas, parallel plate waveguide. I

Year: 2001
DOI identifier: 10.1109/8.918618
OAI identifier: oai:CiteSeerX.psu:
Provided by: CiteSeerX
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