Q-Band beam wave-guide


Autoria(s): John, G
Data(s)

1980

Resumo

Consideration is given to a 25-foot long Q-band (8 mm) confocal, zoned dielectric lens beam waveguide. Numerical expressions for the axial and radial fields are presented. The experimental set-up consisted of uniformly spaced zoned dielectric lenses, a transmitting horn and a receiving horn. It was found that: (1) the wave beam is reiterated when confocal, zoned dielectric lenses act as phase transformers in place of smooth surfaced transformers in beam waveguides; (2) the axial field is oscillatory near the source and the oscillation persists for about 25 cm from the source; (3) the oscillation disappears after one lens is used; (4) higher order modes with higher attenuation rates die out faster than fundamental modes; (5) phase transformers do not alter beam modes; (6) without any lens the beam cross-section broadens significantly in the Z-direction; (7) with one lens the beam exhibits the reiteration phenomenon; and (8) inserting a second lens on the axial and cross-sectional field distribution shows further the reiteration principle.

Formato

application/pdf

Identificador

http://eprints.iisc.ernet.in/34724/1/iiscj_vol62%289%29SecA1980.pdf

John, G (1980) Q-Band beam wave-guide. In: Journal of the Indian Institute of Science, 62 (9). pp. 159-170.

Publicador

J Indian Institute of science

Relação

http://journal.library.iisc.ernet.in/archives.html

http://eprints.iisc.ernet.in/34724/

Palavras-Chave #Electrical Communication Engineering
Tipo

Journal Article

PeerReviewed