Optically Controlled Photoconductive N-Bit Switched Microwave Signal Attenuator
Abbreviated Journal Title
IEEE Microw. Guided Wave Lett.
Engineering, Electrical & Electronic
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.
Ieee Microwave and Guided Wave Letters
"Optically Controlled Photoconductive N-Bit Switched Microwave Signal Attenuator" (1995). Faculty Bibliography 1990s. 1451.