S/N enhancer

Second-harmonic-wave chocking filter

Second-order band-pass filter and wireless apparatus using...

Selectable bandstop/bandpass filter with switches selecting the

Selectable frequency dielectric filter having a ganged relation

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

Semi-coaxial cavity resonator filter

Semi-coaxial cavity resonator, filter using the same, and...

Semi-coaxial cavity resonator, filter using the same, and...

Series coupled filters where the first filter is a dielectric re

Series notch filter and multicoupler utilizing same

Sheet-metal filter

Shield and ceramic filter

Shield for dielectric filter and dielectric filter equipped...

Side-coupled microwave filter with circumferentially-spaced...

Silicone rubber for relieving stress in magnetic material

Simultaneous coupling bandpass filter and method

Simultaneous switching noise filter architecture and method

Single and dual mode helix loaded cavity filters

Single ground plane interdigital band-pass filter apparatus and