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A new approach to the design of a compact high efficiency active integrated antenna
Author(s) -
Ooi S. F.,
Lee S. K.,
Sambell A.,
Korolkiewicz E.,
Scott S.
Publication year - 2008
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.23156
Subject(s) - antenna (radio) , antenna tuner , electrical engineering , impedance matching , engineering , microwave , electrical impedance , electronic engineering , antenna measurement , antenna factor , telecommunications
In this letter, two active integrated antenna (AIA) circuits employing an H‐shaped patch antenna operating at 2.45 GHz are presented. In the first design a probe feed position on the antenna is found to give an input impedance of 50 Ω at the fundamental frequency. For the second design a probe feed position is found to give the optimum impedance at the fundamental frequency. Hence the load matching network is eliminated. Each circuit achieved a measured power added efficiency (PAE) of over 67%. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 585–589, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23156