Dual-band electromagnetic coupler

Dual-band multilayer bandpass filter

Dual-band nonreversible circuit device comprising two nonreversi

Dual-mode band-pass filter

Dual-mode stripline antenna feed performing multiple angularly s

Duplex dielectric filter

Duplex filter operating as a change-over switch

Duplex filtering

Duplex/diplexer having two modularly constructed filters

Duplexer

Duplexer

Duplexer and communication apparatus including the same

Duplexer and communication apparatus using the same

Duplexer and communication apparatus with a matching circuit...

Duplexer and communication apparatus with first and second...

Duplexer and communications equipment

Duplexer and composite module having a package with an...

Duplexer and elastic wave device

Duplexer and ladder type filter

Duplexer and method of isolating an Rx-band and a Tx-band