Millimeter-wave integrated-horn antennas. I. Theory

Eleftheriades, George V.; Ali-Ahmad, W.Y.; Katehi, L.P.B.; Rebeiz, Gabriel M.

doi:10.1109/8.102771

Cited by 52 publications

(14 citation statements)

References 12 publications

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“…Waveguides cannot generate electromagnetic waves and they need to be coupled to microwave sources which have a distinct means of transforming current into electromagnetic waves using an active source with a feedback mechanism [20]. Horn antennas having waveguides as feed points are in turn powered by dipole or monopole antennas which transform current into electromagnetic waves resulting in radiation [21]. Thus, the mechanism of transformation of current into electromagnetic waves in the dielectric medium of a DRA which has bound charge has not been addressed so far as in order to generate electromagnetic waves, acceleration of free electrons in the cavity of the resonator at one of the resonant frequencies is an essential requirement.…”

mentioning

confidence: 99%

Electromagnetic Radiation under Explicit Symmetry Breaking

Sinha

Amaratunga

2015

Phys. Rev. Lett.

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We report our observation that radiation from a system of accelerating charges is possible only when there is explicit breaking of symmetry in the electric field in space within the spatial configuration of the radiating system. Under symmetry breaking, current within an enclosed area around the radiating structure is not conserved at a certain instant of time resulting in radiation in free space. Electromagnetic radiation from dielectric and piezoelectric material based resonators are discussed in this context. Finally, it is argued that symmetry of a resonator of any form can be explicitly broken to create a radiating antenna.

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confidence: 99%

Electromagnetic Radiation under Explicit Symmetry Breaking

Sinha

Amaratunga

2015

Phys. Rev. Lett.

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“…Less powerful approaches approximate the field inside the horn by replacing the horn contour by many small steps, using slotline equations for each step, and finally equating power flow between steps. The resulting aperture distribution is used with a half-plane Green's function formulation to get patterns (Eleftheriades et al, 1991;Janaswamy and Schaubert, 1987). Results are not as good as those from mode matching at small steps in waveguide horns, but are better for horn mouths several wavelengths or more.…”

Section: Analysis and Design Of Hornsmentioning

confidence: 99%

Array Elements

2009

Phased Array Antennas

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“…It was introduced in [9] and has generated extensive interest because of its high gain, high efficiency, and wide bandwidth. Several millimeter-wave and submillimeter-wave receivers that integrate mixers with horn antennas have been reported and shown to have superior performance [10]- [15], where a couple of silicon wafers are wet-etched along a certain crystal orientation and stacked to form the horn flare.…”

mentioning

confidence: 99%

“…A microstrip probe, a dipole or a slot ring can be used to excite the horn [9]- [14]. However, almost all of these excitation structures need to be fabricated separately on another substrate (silicon, quartz or a thin film dielectric substrate) and inserted into an individual microstrip channel.…”

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confidence: 99%

A 60-GHz CPW-Fed High-Gain and Broadband Integrated Horn Antenna

Pan

Ponchak

et al. 2009

IEEE Trans. Antennas Propagat.

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Abstract-An integrated horn antenna is presented for 60-GHz WPAN applications. Compared with other types of antenna for 60-GHz WPAN applications, an integrated horn antenna features wide bandwidth and high gain. This integrated H-plane horn is elevated on the top of the substrate using CMOS-compatible microfabrication steps. Antenna efficiency is greatly improved after eliminating dielectric loss. This antenna is excited using an integrated vertical current probe connected with a coplanar-waveguide (CPW) by surface micromachining technologies. The lower part of the horn is constructed by rows of metallized pillars. The upper part and the top wall are built by stacking two layers of micromachined silicon wafers. The horn bottom is formed by metalizing the substrate's top surface. A prototype antenna is designed, fabricated, and characterized. Simulation and measurement results have shown wide input matching bandwidth and radiation bandwidth. The measured radiation pattern agrees well with the simulated one, demonstrating a gain as high as 14.6 dBi.

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Millimeter-wave integrated-horn antennas. I. Theory

Cited by 52 publications

References 12 publications

Electromagnetic Radiation under Explicit Symmetry Breaking

Electromagnetic Radiation under Explicit Symmetry Breaking

Array Elements

A 60-GHz CPW-Fed High-Gain and Broadband Integrated Horn Antenna

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