Microwave Antenna Relative Gain Measurements in a Partially Coherent Field PDF Download
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Author: Rudolph John Dichtl (CAPT, USAF.)
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ISBN:
Category : Microwave antennas
Languages : en
Pages : 113
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Author: Rudolph John Dichtl (CAPT, USAF.)
Publisher:
ISBN:
Category : Microwave antennas
Languages : en
Pages : 113
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Book Description
Author: Rudolph J. DICHTL
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ISBN:
Category :
Languages : en
Pages : 119
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Relative gain and resolution measurements of a microwave antenna in a partially coherent field were made. The degree of coherence function for a rectangular aperture incoherent source was also measured. A resonant longitudinal slot array antenna with a center frequency of 2.8 GHz was constructed. The partial coherent microwave field was generated by an incoherent source which consisted of a planar array of commercial fluorescent lamps. A tuned radio frequency (TRF) radiometer was used in conjunction with a lock-in amplifier as a synchronous detection system. The experimentally measured degree of coherence function agreed well with theory. The results of the antenna measurements indicated that only a limited improvement in gain and resolution could be obtained by increasing the aperture dimensions for an antenna in a field of a known degree of partial coherence. (Author).
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Category : Aeronautics
Languages : en
Pages : 764
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Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
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Category : Science
Languages : en
Pages : 776
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Author: J. L. Poirier
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Category : Chickens
Languages : en
Pages : 20
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Category : Government publications
Languages : en
Pages : 726
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Author: Richard Alden Henschke
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Category : Shortwave radio
Languages : en
Pages : 196
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Category : Dissertations, Academic
Languages : en
Pages : 170
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Author: J. L. Poirier
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Category : Chickens
Languages : en
Pages : 0
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Category : Chemistry
Languages : en
Pages : 512
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