## Abstract The relation of Q and half‐power bandwidth for antennas, Q = 1/BW, is well known. Here it is shown that 1/Q gives an accurate bandwidth for electrically small dipoles and loops. Bandwidths from 1/Q are compared with exact bandwidths, using a sinusoidal current computer model for dipoles
Enhanced radiation efficiency of electrically small microstrip antennas
✍ Scribed by Kuo-Hua Tseng; Choon Sae Lee
- Publisher
- John Wiley and Sons
- Year
- 2003
- Tongue
- English
- Weight
- 79 KB
- Volume
- 39
- Category
- Article
- ISSN
- 0895-2477
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✦ Synopsis
Abstract
By inserting width discontinuities in the middle of a rectangular microstrip patch, the length of a microstrip antenna can be significantly reduced at a given operating frequency. However, as the antenna size is reduced, the radiation efficiency becomes degraded. In this paper, it is shown that the radiation efficiency is improved substantially when the single junction at each width discontinuity is replaced by multiple junctions. © 2003 Wiley Periodicals, Inc. Microwave Opt Technol Lett 39: 62–64, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.11127
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