Novel shaped-beam microstrip slot array series FED by stepped-impedance line
✍ Scribed by M. A. Hanqing; Qing-Xin Chu; Zhang Qiuyi
- Publisher
- John Wiley and Sons
- Year
- 2008
- Tongue
- English
- Weight
- 347 KB
- Volume
- 50
- Category
- Article
- ISSN
- 0895-2477
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✦ Synopsis
Abstract
A series‐fed eight‐slot microstrip array antenna operating at 3.5 GHz with a cosecant‐squared shape beam is presented. The shaped radiation pattern is achieved by changing only the characteristic impedance of the series fed line between slots. The proposed antenna has a shaped‐beam with elevation coverage of 35°, a gain of 10.86 dBi, and side lobe levels less than −19 dB. Since the slots and fed strip are fabricated on a single substrate, the antenna is easy to manufacture and low cost. Experimental results demonstrate the validity of this design. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 2434–2437, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23662