Twin strip resonators and filters constructed from these resonat
Twisted waveguide and wireless device
U-shaped microwave and millimeter wave resonator filter
UHF bandpass filter
UHF Filter assembly
Ultra-high frequency filter with a dielectric resonator tunable
Varactor tunable coupled transmission line band reject filter
Varactor tuned helical resonator for use with duplex filter
Varactor-tuned helical resonator filter
Variable printed circuit waveguide filter
Variable radio frequency band filter
Variable radio frequency band filter
Variable radio frequency band filter
Variable radio frequency band filter
Variable tuning filter in high frequency circuit
Variable waveguide
Variable-frequency high frequency filter
Variable-frequency resonator circuit, variable-frequency...
Vertical coupling structure for non-adjacent resonators
Very high frequency (VHF) sharp tuned elliptic filter and...