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On the wheeler cap measurement of the efficiency of microstrip antennas
- Issue Date
- Jul-2005
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- antenna efficiency; efficiency measurement; microstrip antennas; Wheeler cap
- Citation
- IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, v.53, no.7, pp.2328 - 2332
- Journal Title
- IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
- Volume
- 53
- Number
- 7
- Start Page
- 2328
- End Page
- 2332
- ISSN
- 0018-926X
- Abstract
- The Wheeler cap method for measuring the efficiency of microstrip, antennas is revisited. First, we show that the parallel RLC model is a more appropriate model to use than a series one for the microstrip antennas under consideration. Our results are verified by numerical simulation using ENSEMBLE. Second, the role of the interior cavity modes is investigated and a reduced-height Wheeler cap is proposed. Finally, the Wheeler cap method is applied to measure the efficiency of miniaturized microstrip antennas designed using genetic algorithms.
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Related Researcher
- Choo, Ho sung
- Engineering (Electronic & Electrical Engineering)