Antenna exciter for at least two different frequency bands

Antenna transmission line

Apparatus and method for communications via multiple...

Apparatus and method for dividing/combining microwave power...

Apparatus and method for varying the coupling of a radio...

Apparatus for aligning and joining tubular members

Apparatus for blocking a d.c. component of a signal

Apparatus for connecting waveguide and method therefor

Apparatus for coupling electromagnetic radiation to an...

Apparatus for the continuous manufacture of waveguides

Apparatus for transferring energy between a transmission...

Apparatus for varying the magnetic field for a magnetic...

Apparatus to couple laser radiation into a microwave waveguide

Arrangement and method relating to microwave devices

Arrangement and method relating to tunable devices

Arrangement for coupling hollow waveguides to a...

Arrangement for input multiplexer

Arrangement for microwave transmission between two bodies...

Arrangement for the equalization of a frequency signal, for...

Arrangement for the excitation of a wave in a wave guide