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...
Voltage tunable bandpass filter
Voltage tunable half wavelength microstrip filter
Voltage tunable patch filter element with dielectrically...
Voltage-controlled resonator, method of fabricating the same, me
Voltage-controlled variable-passband filter and high-frequency c