Printed circuit antennas with integrated FET detectors for millimeter-wave quasi optics

Chew, W.; Fetterman, H. R.

doi:10.1109/22.21632

Cited by 18 publications

(2 citation statements)

References 11 publications

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“…It is a high-gain antenna (20 dB), and coupling efficiencies around 55% have been measured with fll.8 imaging systems [2]. A more detailed analysis of the corner-cube antenna shows that coupling efficiencies around 78% could be attained with a 1.35 i , long-wire antenna placed 0.9 1 from the apex [3]. The corner-cube antenna is used extensively at frequencies above 300 GHz, because it is easier to machine than conventional waveguide horn antennas.…”

Section: Discussionmentioning

confidence: 99%

A planar dipole array antenna with an elliptical lens

Skalare

Graauw

Stadt

1991

Micro & Optical Tech Letters

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We describe a planar antenna struciure consisting of two half-wave dipoles. which are backed by a metallic reflecior to create an image of two more elements. The array produces rather a wide main beam, and is rherefore used with a dielectric lens. The far-field pattern of the dipolellens anienna has cross-pol beiier than -20 dB, and side lobes below -13 dB over U N octave band. The impedance at the feedpoint of the antenna is upproximately 70 -jl0 R at the center of the band. ABSTRACT A high-gain monolithic millimeter-wave antenna has been designed, fabricated and tested at 222 GHz. The structure consists of a traveling-wave antenna integrated on a 1.2-pm dielectric membrane and suspended in a longitudinal cavity etched in a silicon wafer. A new traveling-wave antenna design yields a wideband input impedance and a low cross-polarization component in the Eand quasi-Hplane patterns. A directivity of 17.7 dB and a main-beam eficiency of 88.5% are calculated from the 222-GHz pattern measurements. The integrated corner-reflector antenna is well suited for millimeterand submillimeter-wave imaging applications in large f-number systems.

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Section: Discussionmentioning

confidence: 99%

A planar dipole array antenna with an elliptical lens

Skalare

Graauw

Stadt

1991

Micro & Optical Tech Letters

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“…The device layer structure is shown in figure 1. The HBTs were mounted onto twin dipole printed circuit antennas that were designed to have optimum gain at 60 GHz [7]. The optically generated millimeter waves were then radiated into free-space and collected into waveguide using a large aperture horn.…”

Section: Methodsmentioning

confidence: 99%

60 GHz sources using optically driven HBTs

Scott¹,

Plant²,

Fetterman³

1992 IEEE Microwave Symposium Digest MTT-S

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photodetectors integrated with planar twin-dipole antenna structures to generate 60 GHz radiation. Our initial efforts employed two cw lasers in a mixing configuration to demonstrate proof of principle. In subsequent experiments, a mode locked semiconductor laser was substituted for the mixing system to produce a compact and highly stable transit time device (mode locked laser) and a high Millimeter wave sources at 60 GHz have been demonstrated using optically driven heterojunction bipolar transistors configured as photodetectors. Two millimeter waves; the mixing of two cw lasers and were used to optically generate the radiation source [4,5]. This combination of an optical the mode locking Of a semiconductor laser' The speed phototransistor (HBT) defines a new type of optoelectronic millimeter wave source which can be wave power generated from these distributed to form novel coherent arrays. configurations was radiated into free-space using integrated planar twin dipole antennas and heterodyne detected with signal to noise ratios > 40 dB. As part of these experiments, the DC optical gain and quantum efficiency of the HBT photodetectors was determined.

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10 GHz GaAs monolithic twin‐dipole antenna FET mixer

Meng

Deng

Lee

et al. 2001

Micro & Optical Tech Letters

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The first fully monolithic X‐band twin‐dipole antenna mixer consisting of a uniplanar twin‐dipole antenna and a GaAs MESFET single‐gate mixer on the same GaAs substrate fabricated by monolithic microwave integrated‐circuit technology (MMIC) is reported. The total chip size is 5×5 mm2. This circuit received an RF signal of 10 GHz, and down‐converted it to an IF signal of 1 GHz with a conversion loss of 22 dB. The experimental results demonstrate that this topology has potential applications for future low‐cost millimeter‐wave receivers for smart munitions seekers and automotive‐collision‐avoidance radars. © 2001 John Wiley & Sons, Inc. Microwave Opt Technol Lett 30: 436–438, 2001.

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Printed circuit antennas with integrated FET detectors for millimeter-wave quasi optics

Cited by 18 publications

References 11 publications

A planar dipole array antenna with an elliptical lens

A planar dipole array antenna with an elliptical lens

60 GHz sources using optically driven HBTs

10 GHz GaAs monolithic twin‐dipole antenna FET mixer

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