Title

Optically Controlled Photoconductive N-Bit Switched Microwave Signal Attenuator

Authors

Authors

N. A. Riza;S. E. Saddow

Comments

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Abbreviated Journal Title

IEEE Microw. Guided Wave Lett.

Keywords

Engineering, Electrical & Electronic

Abstract

An optical architecture for N-bit digital control of microwave signals is introduced that uses the photoconductive effect in microwave waveguides for variable rf attenuation control. A 2-bit optically controlled microwave attenuator based on a transmission line fabricated on a silicon photoconductive substrate is experimentally demonstrated at 990 MHz. This attenuator provided 0, 5.8, 11.2, and 15.6 dB of independent optically snitched attenuation levels.

Journal Title

Ieee Microwave and Guided Wave Letters

Volume

5

Issue/Number

12

Publication Date

1-1-1995

Document Type

Article

Language

English

First Page

448

Last Page

450

WOS Identifier

WOS:A1995TF82300009

ISSN

1051-8207

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