Planar balun with non-uniform microstrip line width to improve S-parameter alignment

Multi-layered band-pass filter device

Package Antenna Apparatus and Wireless Communication Apparatus

Radio frequency pass-band filter

Millimeter wave LTCC filter

Millimeter wave LTCC filter

Methods of forming flipped RF filter components

Filter

Three-dimensional LC electrical resonator device

Tunable dual-band resonator

Flipped RF filters and components

Tunable dual-band band-pass filter

Filter characteristic tuning apparatus, tunable filter apparatus and control method for tunable filter apparatus

Microstrip line filter

Filter and resonator

Radio-frequency filter comprising an even mode resonance of a same phase inside the bandwidth and an odd mode resonance of a reverse phase outside the bandwidth

Artificial microstructure and metamaterial with the same

BAND-PASS FILTER

MICROWAVE FILTER

High-frequency filter

WIRING SUBSTRATE, FILTER DEVICE AND PORTABLE EQUIPMENT

Stripline filter

Millimetre wave bandpass filter on CMOS

Band pass filter combiner

SYSTEM AND METHOD FOR MODIFYING HAIRPIN FILTER, AND HAIRPIN FILTER

High frequency signal combining

BAND-PASS FILTER

Self-matching band-pass filter and related frequency down converter

Resonator and filter using the same

Method of rapid prototyping a microwave device

Hairpin band pass filter and related frequency down converter

Fully integrated micro-strip VCO

Switchable bandpass filter having stepped-impedance resonators loaded with diodes

Resonator comprised of a bent conductor line with slits therein and a filter formed therefrom

Low loss RF transmission lines having a reference conductor with a recess portion opposite a signal conductor

High frequency signal combining

FILTER AND RADIO COMMUNICATION DEVICE USING THE SAME

TUNABLE FILTER AND METHOD FOR FABRICATING THE SAME

RF filtering at very high frequencies for substrate communications

Dielectric filter having electrodes jump-coupled to a flexion, a chip device having the dielectric filter and method of manufacturing the chip device

FILTER

Tunable microwave arrangements

Superconductor filter

Active bandpass filter

FILTER CIRCUIT AND METHOD OF ADJUSTING CHARACTERISTICS THEREOF

Filter and radio communication device using the same

Superconductive filter having U-type microstrip resonators with longer and shorter parallel sides

RF filter tuning system and method

Miniaturized parallel coupled line filter using lumped capacitors and grounding and fabrication method thereof

Planar filter, semiconductor device and radio unit

Bandpass filter

Dual-band bandpass filter with stepped-impedance resonators

Superconductor filter

Band pass filter having resonators connected by off-set wire couplings