Filters

	0.01-20 GHz	Filtek: Coaxial Filters, Bandpass, Lowpass, Highpass, Notch, Tubular, Cavity, Interdigital, Combline, Lumped Element. Standard & Custom Configurations, Diplexers, Tunables.
	18 GHz -2.5 THz	Virginia Diodes Inc: Millimeter Wave GaAs Schottky Diodes, Mixers, Multipliers, Filters, Oscillators, Integrated Circuits & Components.
	18 -110 GHz	Spacek Labs Inc: Millimeter Wave Mixers, Converters, Multipliers, Amplifiers, Filters, Sub-assemblies, adiometers, Sources, Phase Locked Oscillators, GDOs. Rack Mount and Weatherproof Systems.
	1-110 GHz	AtlanTecRF: Couplers, Terminations, Tees, WG-Coax Adapters; Straight, Bend & Twist Sections, Horn Antennae, Cassegrain Antennae, Filters, Isolators, Circulators Switches, Phase Shifters, Variable Attenuators, Detectors, Differential Phase Shift Devices, Variable Shorts & Terminations.