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Author
Brown, E. R.
;
Lee, A. W. M.
;
Navi, B. S.
;
Bjarnason, J. E.
Title
Characterization of a planar self-complementary square-spiral antenna in the THz region
Type
Journal Article
Year
2006
Publication
Microwave and Optical Technology Letters
Abbreviated Journal
Microwave Opt Technol Lett
Volume
48
Issue
3
Pages
524-529
Keywords
optical antennas
;
square spiral antenna
;
self complementary THz
;
photomixing
;
lens
;
method of moments
;
geometric optics
;
physical optics
Abstract
This paper describes a compact, self-complementary square-spiral antenna on a GaAs substrate with a broadside high-directivity (~9 dB) frequency-independent pattern when coupled through a silicon hyperhemisphere. The driving-point resistance undulates between ~00 and 300Ω from 200 GHz to 1 THz—much higher than the 72Ω value from Booker's modified formula, but quite beneficial for coupling to high-impedance broadband devices
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Approved
no
Call Number
RPLAB @ gujma @
Serial
736
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Author
Codreanu, Iulian
;
Boreman, Glenn D.
Title
Infrared microstrip dipole antennas
Type
Journal Article
Year
2001
Publication
Microwave and Optical Technology Letters
Abbreviated Journal
Microw Opt Technol Lett
Volume
29
Issue
6
Pages
381-383
Keywords
optical antennas
Abstract
Abstract 10.1002/mop.1184.abs We report on the successful use of niobium microbolometers coupled to microstrip dipole antennas for the detection of midinfrared radiation. Measurements of the detector response versus antenna length performed at the 10.6 μm wavelength allowed us to identify the first three current-wave resonances along the antenna arms. The detector response was also measured as a function of the radiation wavelength in the 911 μm spectral domain. Excellent agreement between the experimental results and finite-difference time-domain (FDTD) predictions was obtained.
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RPLAB @ gujma @
Serial
738
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