Referenced Items are not available for this document.
Time-modulated linear arrays (TMLAs) based on single-pole-single-throw (SPST) switches usually have higher reduction in gain due to the sideband radiation and power absorption of the off-state absorptive switches. In this letter, a novel approach is proposed to improve the gain of TMLAs using single-pole-double-throw (SPDT) switches. The gain of the proposed TMLA can be improved significantly by controlling two array elements with each SPDT switch. Moreover, the proposed TMLA has a constant instantaneous directivity, which is favorable for some applications. Numerical results are presented to illustrate the proposed approach by considering a 16-element linear array with a -30 dB sidelobe level.
Published in:
Antennas and Wireless Propagation Letters, IEEE
(Volume:11
)
Date of Publication: 2012
- Page(s):
- 994 - 997
- ISSN :
- 1536-1225
- INSPEC Accession Number:
- 12956769
- Digital Object Identifier :
- 10.1109/LAWP.2012.2213292
- Product Type:
- Journals & Magazines
- Date of Publication :
- 15 August 2012
- Date of Current Version :
- 31 August 2012
- Issue Date :
- 2012
- Sponsored by :
- IEEE Antennas and Propagation Society
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