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A novel compact wideband antenna, which adopts a multi-state switchable matching circuit, is proposed in this paper. The design of the switchable matching is systematically studied and a two-step iterative procedure is used to obtain optimized values for both the bandwidth division between the various stages and the matching circuit components in each stage. Without loss of generality, a meander line monopole, with dimensions of 80 10 10 , is used as the radiator in the proposed wideband antenna design. To validate the proposed new design, a four-state matching circuit controlled by four PIN diodes is fabricated and measured. The reflection coefficient of the prototype antenna is found to be better than , and the peak gain is higher than across the 470-770 MHz bandwidth for the Integrated Services Digital Broadcasting-Terrestrial (ISDB-T) application.
Published in:
Antennas and Propagation, IEEE Transactions on
(Volume:58
,
Issue:
11
)
Date of Publication: Nov. 2010
- Page(s):
- 3450 - 3457
- ISSN :
- 0018-926X
- INSPEC Accession Number:
- 11623424
- Digital Object Identifier :
- 10.1109/TAP.2010.2071345
- Date of Publication :
- 02 September 2010
- Date of Current Version :
- 01 November 2010
- Issue Date :
- Nov. 2010
- Sponsored by :
- IEEE Antennas and Propagation Society
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