Development of a cylindrical waveguide antenna array with a high isolation between receive - Transmit sub arrays: Theory and experiment

Okhmatovsky, VI; Nikita, KS; Koulouridis, S; Uzunoglu, NK

dc.contributor.author	Okhmatovsky, VI	en
dc.contributor.author	Nikita, KS	en
dc.contributor.author	Koulouridis, S	en
dc.contributor.author	Uzunoglu, NK	en
dc.date.accessioned	2014-03-01T01:51:51Z
dc.date.available	2014-03-01T01:51:51Z
dc.date.issued	2002	en
dc.identifier.issn	13000632	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/26482
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0036264283&partnerID=40&md5=4711d670d3e1399f96696ccdbc8749a9	en
dc.subject	Antenna array	en
dc.subject	Aperture antenna	en
dc.subject	Boundary value problem	en
dc.subject	Cylindrical waveguide	en
dc.subject	Dyadic Green's function	en
dc.subject	Galerkin method	en
dc.subject	Loaded radial line	en
dc.subject	Space filters	en
dc.subject	Transmit and receive sub-arrays	en
dc.subject.other	Boundary value problems	en
dc.subject.other	Circular waveguides	en
dc.subject.other	Directional patterns (antenna)	en
dc.subject.other	Electromagnetic wave attenuation	en
dc.subject.other	Energy conservation	en
dc.subject.other	Green's function	en
dc.subject.other	Mathematical models	en
dc.subject.other	Optical transfer function	en
dc.subject.other	Transponders	en
dc.subject.other	Cylindrical waveguide antenna arrays	en
dc.subject.other	Antenna arrays	en
dc.title	Development of a cylindrical waveguide antenna array with a high isolation between receive - Transmit sub arrays: Theory and experiment	en
heal.type	journalArticle	en
heal.publicationDate	2002	en
heal.abstract	The possibility of developing an antenna system consisting of transmit and receive arrays and being able to work simultaneously in full duplex mode at the same frequency is a very attractive task. This could only be achieved if the isolation between the transmit and receive arrays is sufficiently high not to cause a parasitic oscillation which will ruin the proper operation of a transponder system to which the arrays will be connected. Specifically, in this paper the operation of two peripheral open waveguide arrays placed on a cylindrical surface and being isolated with a radial line operating as a space filter, is studied. In analyzing the radiation properties of this rather complicated array antenna which has a conformal structure, an integral equation technique is used, while the solution of the derived set of equations is obtained by using a Galerkin approach. The accuracy of the developed solution is verified by several tests such as energy conservation theorem, convergence patterns and comparison with results obtained by applying the physical theory of diffraction technique. In addition to the theoretical analysis, an experimental antenna system has been developed and measured. Comparison of theoretical and experimental results is carried out and the validity of the solution is verified.	en
heal.journalName	Turkish Journal of Electrical Engineering and Computer Sciences	en
dc.identifier.volume	10	en
dc.identifier.issue	2	en
dc.identifier.spage	307	en
dc.identifier.epage	316	en