A self-diplexing quasi-optical magic slot balanced mixer

Author

Tong, Cheuk-Yu Edward ; Blundell, Raymond

Author_Institution

Harvard-Smithsonian Center for Astrophys., Cambridge, MA, USA

Volume

42

Issue

3

fYear

1994

fDate

3/1/1994 12:00:00 AM

Firstpage

383

Lastpage

388

Abstract

Drawing on the principles of operation of the magic tee balanced mixer, a quasi-optical magic slot balanced mixer is proposed. The mixer exploits a diametrically fed annular slot radiator which radiates two orthogonal polarizations which are used as signal and local oscillator input ports. The idea has been tested at microwave frequencies. The measured radiation impedances, radiation patterns and conversion efficiency show that reasonable performance is readily obtained over a 30% bandwidth and that this quasi-optical balanced mixer is suitable for submillimeter wave applications

Keywords

microwave devices; mixers (circuits); submillimetre wave devices; waveguide components; annular slot radiator; balanced mixer; conversion efficiency; diametrically fed radiator; magic slot; microwave frequencies; orthogonal polarizations; quasi-optical mixer; radiation impedances; radiation patterns; self-diplexing type; submillimeter wave applications; 1f noise; Bandwidth; Microwave measurements; Millimeter wave measurements; Millimeter wave technology; Optical noise; Optical receivers; Polarization; Superconducting device noise; Testing;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.277430

Filename

277430