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Title: Broadband suspended plate antenna with probe-fed strip
Authors: Chen, Z.N. 
Chia, M.Y.W. 
Issue Date: Feb-2001
Source: Chen, Z.N., Chia, M.Y.W. (2001-02). Broadband suspended plate antenna with probe-fed strip. IEE Proceedings: Microwaves, Antennas and Propagation 148 (1) : 37-40. ScholarBank@NUS Repository.
Abstract: The paper demonstrates a new means of achieving a broad impedance bandwidth with a simple mechanical structure and low cross-polarisation levels for a suspended plate antenna with a co-axial probe-fed strip. The feeding-strip co-planar with the plate has a capacitive coupling with the plate, which effectively wipes out large inductance due to the long probe and gives rise to a broad impedance bandwidth. The narrow feeding structure avoids unwanted change of the current distribution at the plate surface and therefore, improves the polarisation performance to some degree. Furthermore, the co-planar feeding configuration simplifies the mechanical structure of the antenna. As examples, two rectangular suspended probe-fed strip single-layer plate antennas were made and examined experimentally. Measurements demonstrate good performances with broad impedance bandwidths up to 36%, stable radiation patterns with cross-polarisation levels of less than -17dB, and gains of 4-5.dBi.
Source Title: IEE Proceedings: Microwaves, Antennas and Propagation
ISSN: 13502417
DOI: 10.1049/ip-map:20010227
Appears in Collections:Staff Publications

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