Evaluation of Frequency Characteristics of Absorbing Materials Using Time-Domain Single Antenna Method at Standard Site

Author

Kurokawa, Satoru ; Hirose, Masanobu ; Komiyama, Koji

Author_Institution

Nat. Inst. of Adv. Ind. Sci. & Technol., Ibaraki

fYear

2007

fDate

9-13 July 2007

Firstpage

1

Lastpage

3

Abstract

Frequency characteristics of absorbing materials are evaluated in single-antenna calibration technique using a log- periodic antenna on a standard ground plane. The technique is applied to the data both in frequency- and time-domains, to evaluate the frequency characteristics of absorbing materials on the ground plane. Time-domain subtraction enables us to separate the wave reflected from absorbing materials. As a result, we have found that the dynamic range of our proposed method is more than 40 dB throughout a wide frequency range from 700 MHz to 2000 MHz.

Keywords

UHF antennas; electromagnetic wave absorption; frequency-domain analysis; log periodic antennas; time-domain analysis; absorbing material; calibration technique; frequency 700 MHz to 2000 MHz; frequency characteristics evaluation; log-periodic antenna; standard ground plane; time-domain single antenna method; time-domain subtraction; Antenna accessories; Antenna measurements; Calibration; Frequency measurement; Log periodic antennas; Receiving antennas; Reflection; Reflector antennas; Time domain analysis; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility, 2007. EMC 2007. IEEE International Symposium on

Conference_Location

Honolulu, HI

Print_ISBN

1-4244-1349-4

Electronic_ISBN

1-4244-1350-8

Type

conf

DOI

10.1109/ISEMC.2007.218

Filename

4305798