Summary
International Symposium on Antennas and Propagation
2008
Session Number:3B09
Session:
Number:3B09-3
On the resonant transmission width of the narrow gap between two overlapped half-plane conductors
Young-Ki Cho, Jong-Eon Park, Jong-Ig Lee,
pp.-
Publication Date:2008/10/27
Online ISSN:2188-5079
Summary:
The various problems [1-3] of electromagnetic coupling from one region to another through a transmission-cavity-resonance (TCR) structure have been dealt with in the electromagnetic community. The transmission cavity in these problems can take the structures of two types; one type [1] is the one cavity formed by two conducting transverse walls having a small coupling hole (or iris) in them as in the aperture coupled microwave band pass filter. In contrast to this type, the open ends (corresponding to slit or aperture) at both extreme ends of the cavity region, by themselves behave like lossy magnetic walls as in [2] and in the cavity model for the microstrip patch antenna [4], and in the present work, the transmission cavity may be also formed by the partially overlapped conducting planes without necessity of using the transverse conducting walls with a small hole in them. The transmission resonance problem through the cavity of the former type was first considered by Leviatan [1] and that of the latter type was investigated by Harrington [2]. Some years later, it was reported that the transmission resonance phenomena similar to those in the prior works [1-2] are observed also in the seemingly quite different structure which is composed of two slot perforated parallel conducting planes [3]. Motivated by this report [3], we investigated the reason why the similar transmission resonance phenomena occur for the seemingly different structures in [2] and [3]. For this purpose, we have searched into the structure which shows the transmission resonance phenomena same as that in the previous structure [2] by introducing some suitable modifications [5] in the original structure in [3].