The assembly in claim 18, wherein the assembly is one of a detector, a transmitter, and a noise source. The assembly in claim 19 wherein the electronic device is one of a diode, a transistor, a tunnel junction, and an integrated circuit.Ģ1. The assembly in claim 18, wherein the assembly integrates an electronic device.Ģ0. An assembly comprising a Transverse Electric and Magnetic (TEM) transmission line (TEM line) or quasi-TEM line to double-ridged waveguide launcher and a horn antenna the launcher comprising: one or more probes extending across the gap in a double-ridged waveguide a waveguide backshort and a TEM combiner or matching taper wherein one or more of the ridges of the double-ridged waveguide do not extend into the backshort wherein the backshort provides a near open-circuit to the probes over a wide range of frequencies wherein each probe is adapted to minimize spreading inductance of currents in the launcher across a width of the ridges of the double-ridged waveguide and wherein the TEM combiner matches the collective impedance of the probes to the TEM line and the horn antenna comprising: a double-ridged waveguide input and a radiating aperture wherein the waveguide outer dimensions and ridge width increase smoothly and monotonically over a length of the horn and wherein the gap dimension scales according to a power law relative to one or more of the other waveguide dimensions over a majority of the length of the horn.ġ9. The horn of claim 11, wherein the gap dimension becomes equal to the waveguide height at the aperture of the horn.ġ8.
The horn of claim 11, wherein the waveguide outer dimensions and ridge width follow a linear taper over the majority of the length of the horn.ġ7. The horn of claim 11, wherein the waveguide outer dimensions and ridge width follow a half-cosine taper over an initial length of the horn.ġ6. The horn of claim 11, wherein the waveguide outer dimensions and ridge width scale proportionately to one another over a majority of the length of the horn.ġ5. The horn of claim 12, wherein the aperture-matching comprises an approximately quarter-turn rollout in the outer waveguide dimensions.ġ4. The horn of claim 11, wherein the radiating aperture is aperture-matched.ġ3.
A horn antenna, comprising: a double-ridged waveguide input and a radiating aperture wherein the waveguide outer dimensions and ridge width increase smoothly and monotonically over a length of the horn and wherein the gap dimension scales according to a power law relative to one or more of the other waveguide dimensions over a majority of the length of the horn.ġ2. The launcher of claim 1, wherein the TEM combiner comprises isolation resistors.ġ1. The launcher of claim 1, wherein the probes are one of DC grounded or AC coupled.ġ0.
The launcher of claim 1, wherein the probes comprise one or more of bond wires, beam leads, pins, or traces on a circuit board.ĩ. The launcher of claim 1, wherein the TEM combiner or matching taper is a printed circuit.Ĩ.
The launcher of claim 1 wherein the number of probes is two.ħ. The launcher of claim 4 wherein the wide-aspect field probes comprise one of a beam lead, a bond ribbon, and multiple parallel bond wires.Ħ. The launcher of claim 1 wherein the probe or probes have a wide aspect across the width of the ridge to minimize spreading inductance.ĥ. The launcher of claim 1, wherein the backshort is one of circular or rectangular waveguide.Ĥ. The launcher of claim 1, wherein the TEM line is one of microstrip, stripline, suspended stripline, slotline, coplanar waveguide, grounded coplanar waveguide, twin line, or coaxial line.ģ. A Transverse Electric and Magnetic (TEM) transmission line (TEM line) or quasi-TEM line to double-ridged waveguide launcher, comprising: one or more probes extending across the gap in a double-ridged waveguide a waveguide backshort and a TEM combiner or matching taper wherein one or more of the ridges of the double-ridged waveguide do not extend into the backshort wherein the backshort provides a near open-circuit to the probes over a wide range of frequencies wherein each probe is adapted to minimize spreading inductance of currents in the launcher across a width of the ridges of the double-ridged waveguide and wherein the TEM combiner matches the collective impedance of the probes to the TEM line.Ģ.