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https://doi.org/10.1049/ip-map:20010227
Title: | Broadband suspended plate antenna with probe-fed strip | Authors: | Chen, Z.N. Chia, M.Y.W. |
Issue Date: | Feb-2001 | Citation: | 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. https://doi.org/10.1049/ip-map:20010227 | 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 | URI: | http://scholarbank.nus.edu.sg/handle/10635/112230 | ISSN: | 13502417 | DOI: | 10.1049/ip-map:20010227 |
Appears in Collections: | Staff Publications |
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