Telescope considered as a very high gain antenna

1990 ◽  
Author(s):  
Michel Detaille ◽  
Patrice Houmault
Keyword(s):  
High Gain ◽  
High Gain Antenna ◽  
Very High

Development of a hologram-based CATR for testing a very high gain antenna at 650 GHz

2006 ◽  
Author(s):  
Juha Ala-Laurinaho ◽  
Tomi Koskinen ◽  
Janne Hakli ◽  
Aki Karttunen ◽  
Anne Lonnqvist ◽  
...  
Keyword(s):  
High Gain ◽  
High Gain Antenna ◽  
Very High

Telescope Considered As A Very High Gain Antenna

1989 ◽  
Author(s):  
Michel Detaille ◽  
Patrice Houmault ◽  
Sigmund Manhart
Keyword(s):  
High Gain ◽  
High Gain Antenna ◽  
Very High

Equivalent Noise Dose Obtained Through Hearing Aids in the Classrooms of Hearing-Impaired Children

1990 ◽  
Vol 21 (3) ◽  
pp. 147-150
Author(s):  
Ronald A. Wilde
Keyword(s):  
Hearing Aids ◽  
High Gain ◽  
Hearing Impaired ◽  
Deaf Children ◽  
Impaired Children ◽  
Very High ◽  
Hearing Impaired Children

A commercial noise dose meter was used to estimate the equivalent noise dose received through high-gain hearing aids worn in a school for deaf children. There were no significant differences among nominal SSPL settings and all SSPL settings produced very high equivalent noise doses, although these are within the parameters of previous projections.

A Low-Noise, High-Gain Quasi-Millimeter-Wave Receiver MMIC with a Very High Degree of Integration Using 3D-MMIC Technology

2011 ◽  
Vol E94-C (10) ◽  
pp. 1548-1556 ◽  
Author(s):  
Takana KAHO ◽  
Yo YAMAGUCHI ◽  
Kazuhiro UEHARA ◽  
Kiyomichi ARAKI
Keyword(s):  
Millimeter Wave ◽  
High Gain ◽  
Low Noise ◽  
High Degree ◽  
Very High ◽  
Millimeter Wave Receiver

scholarly journals A Method for Measuring the Maximum Measurable Gain of a Passive Intermodulation Chamber

Electronics ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 770
Author(s):  
Zhanghua Cai ◽  
Yantao Zhou ◽  
Lie Liu ◽  
Francesco de Paulis ◽  
Yihong Qi ◽  
...  
Keyword(s):  
Approximate Method ◽  
Path Loss ◽  
High Gain ◽  
Directional Antenna ◽  
Anechoic Chamber ◽  
Measurement Interval ◽  
High Gain Antenna ◽  
Specific Relationship ◽  
Method Of Measurement ◽  
Passive Intermodulation

This paper presents an approximate method that allows the calculation of the maximum measurable gain (MMG) in an anechoic chamber. This method is realized by using a low passive intermodulation (PIM) medium-gain directional antenna. By reducing the distance between the antenna and the wall of the chamber to reduce path loss, the purpose of replacing a high-gain antenna with a medium-gain antenna is achieved. The specific relationship between distance and equivalent gain is given in this paper. The measurement interval is determined by the 3 dB beamwidth of the measurement antenna to scan the whole chamber. A set of corresponding data for the residual PIM level and the MMG of the chamber can be obtained by the method of measurement outlined herein. The feasibility of this method was verified by measurements in two PIM measurement chambers.

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