Effects of Resonances in Corrugated Horn Antennas for a 22-GHz Balancing Radiometer

Micromachined 95 GHz waveguide-fed plastic horn antennas

Waveguide-fed plastic horn antennas have been demonstrated for W-band applications using a versatile and cost-effective micro hot embossing process. The three-dimensional (3D) polymer structure with internally coated conductor is composed of a pyramidal horn, an E-plane waveguide bend, two resonant cavities for impedance matching and a connecting rectangular waveguide. Measurement results show ...

Balloon borne 19 GHz radiometer

Axial Corrugated Horn Antenna with Elliptical Tapering Function

An axially corrugated horn antenna with an elliptically shaped taper is proposed for satellite communication applications. This structure is a good candidate for the feed of reflectors and also for improving the electrical properties of reflector antennas. A tapering method is used to justify the horizontal location of the corrugation profile which improves the electrical performance of the pre...

Integrated Horn Antennas for Terahertz Applications

We are developing integrated and receivers antennas for terahertz applications. As the remote-sensing/radio-astronomical frequencies are pushed higher into the millimeter and submillimeterwave regions, integrated antennas and receivers become competitive with standard waveguide receivers. The integrated receivers consist of an antenna integrated directly with a matching network/mixer. Integrate...

Photoconductively switched antennas for measuring target resonances

Coplanar-strip horn antennas are switched photoconductively to generate picosecond bursts of freely propagating electromagnetic energy with bandwidth covering 15-75 GHz. The antennas are fabricated on GaAs grown by molecular beam epitaxy at low substrate temperatures. These antennas are used to perform transient scattering measurements from slit-coupled circular and coaxial cavities; Prony’s me...