Title

Optically Controlled Photoconductive N-Bit Switched Microwave Signal Attenuator

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 switched attenuation levels. © 1995 IEEE

Publication Date

1-1-1995

Publication Title

IEEE Microwave and Guided Wave Letters

Volume

5

Issue

12

Number of Pages

448-450

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1109/75.481857

Socpus ID

0029475388 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0029475388

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