Radiation efficiency of small loop antennas for pager

Makoto Sasaki, Qiang Chen, Kunio Sawaya

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

It is well known that the radiation efficiency of small loop antennas used for pagers is very low since the size of the antenna is much smaller than the wavelength. The low efficiency is considered to be caused by the conducting loss of the antenna conductor. However, any accurate analysis has not been performed to show the mechanism of the low efficiency. In this report, numerical results of the moment method analysis of a small loop antenna with a ground plane and a matching circuit involving condensers are presented and the dielectric loss of the condensers as well as the conducting loss of the antenna and the feeding circuit are shown. Experimental results are also presented to demonstrate the improvement of the efficiency.

Original languageEnglish
Title of host publicationIEEE Antennas and Propagation Society International Symposium
Subtitle of host publicationWireless Technologies and Information Networks, APS 1999 - Held in conjunction with USNC/URSI National Radio Science Meeting
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages10-13
Number of pages4
ISBN (Electronic)078035639X, 9780780356399
DOIs
Publication statusPublished - 1999 Jan 1
Event1999 IEEE Antennas and Propagation Society International Symposium, APSURSI 1999 - Orlando, United States
Duration: 1999 Jul 111999 Jul 16

Publication series

NameIEEE Antennas and Propagation Society International Symposium: Wireless Technologies and Information Networks, APS 1999 - Held in conjunction with USNC/URSI National Radio Science Meeting
Volume1

Other

Other1999 IEEE Antennas and Propagation Society International Symposium, APSURSI 1999
CountryUnited States
CityOrlando
Period99/7/1199/7/16

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Radiation

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