S/n enhancer

S/n enhancer

Sealed waveguide window

Seeded flame microwave power load

Selective directional coupler for guided waves

Selective transfer directional coupler for microwave energy

Selective transmission systems for microwave signals

Self-biasing broadband frequency dividers

Semi-flexible double-ridge waveguide

Semiconductor diode

Separate type branching filter

Sheet-metal filter

Shielded dielectric wave guides

Shielding apparatus

Signal bandpass filter apparatus

Signal branch for use in a communication system

Signal coupling apparatus

Signal detection and delay equalization in optical fiber...

Signal distributing/synthesizing apparatus

Signal splitting networks formed from directional couplers