✦ LIBER ✦
Microstrip antenna controlled by p-i-n diodes: Influence of the bias current on the antenna efficiency
✍ Scribed by J. M. Laheurte; H. Tosi; J. L. Dubard
- Publisher
- John Wiley and Sons
- Year
- 2002
- Tongue
- English
- Weight
- 181 KB
- Volume
- 33
- Category
- Article
- ISSN
- 0895-2477
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✦ Synopsis
Abstract
This Letter points out the drop in radiation efficiency observed in active microstrip antennas with switching capabilities for inadequate values of the bias current. For a frequency agile antenna based on p‐i‐n diodes, a trade‐off between the dc consumption of the diodes and the antenna gain is demonstrated. It is also shown that this type of integrated active antenna can be reasonably predicted by a simple resistor model of the diode in a TLM analysis. © 2002 Wiley Periodicals, Inc. Microwave Opt Technol Lett 33: 44–47, 2002; DOI 10.1002/mop.10226