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(2014). Design and Implementation of Cassegrain Antenna with 37dB Gain in Millimeter Wave Spectrum. Electronic and Cyber Defense, 2(3), 11-20.
. "Design and Implementation of Cassegrain Antenna with 37dB Gain in Millimeter Wave Spectrum". Electronic and Cyber Defense, 2, 3, 2014, 11-20.
(2014). 'Design and Implementation of Cassegrain Antenna with 37dB Gain in Millimeter Wave Spectrum', Electronic and Cyber Defense, 2(3), pp. 11-20.
Design and Implementation of Cassegrain Antenna with 37dB Gain in Millimeter Wave Spectrum. Electronic and Cyber Defense, 2014; 2(3): 11-20.

Design and Implementation of Cassegrain Antenna with 37dB Gain in Millimeter Wave Spectrum

الکترومغناطیس کاربردی
Article 2, Volume 2, Issue 3, October 2014, Pages 11-20    PDF (1 M)
Document Type: Original Article
Receive Date: 17 February 2016,  Revise Date: 06 March 2019,  Accept Date: 19 September 2018 
Abstract
Millimeter wave  systems have a wide frequency band. Reflector antennas are a good choice for use in these sys-
tems, due to the broad frequency coverage, high efficiency and gain. In the present paper parabolic reflector antenna
characteristics  and  their  design  principles  have  been  provided.  For  this  purpose,  first  geometry  of  the  parabolic  re-
flector is inspected, and then design process of Cassegrain antenna and its feed have been discussed. Based on it, the
design of a Cassegrain antenna has been done with its feed. Due to the high sensitivity of Cassegrain reflector to the
placing  of  phase  center  of  the  feedhorn  antenna  at focusing  point  of  the  reflector,  it  has  been  tried to  obtain  equal
phase  centers  at  E  and  H-planes.  After  the  simulation  of  antenna by  CST  MWS, the  gain  of  the  antenna  is  obtained
37.27dB. In the current study a broadband Cassegrain system designed and implemented by using designed feed an-
tenna that operate well in 30-40GHz.
Keywords
Dual reflector; Feedhorn antenna; Cassegrain reflector; Millimeter wave antenna
References

[1]  Teshirogi,  Tasuku,  and  Tsukasa  Yoneyama,  eds.  Mod-ern millimeter-wave technologies. Ios Press, 2001.  ##
[2]  Y.  Rahmat-Samii  and  A.  Densmore,  “A  history  of
reflector antenna development: Past, present and future,”
Proc. IEEE Microwave and Optoelectronics Conference,
2009.  ##
[3]  C.  A.  Balanis,  “Antenna  Theory  Analysis  and  Design,”
America, Wiley interscience, 2005. ##
[4]  O. Zandi, “Design And Simulation Of Q-band Parabolic
Reflector  Antenna,”  Electronic  Industries,  vol.  2,  no.1,
pp. 53-79, 2011. ##
[5]  P. Wade, “Multiple Reflector Dish Antennas,” [online] :
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Multiple reflector antennas.pdf, 2004. ##
[6]  Z.  Emami,  “Antennas,  Structure  and  Applications,”
Publications of the Islamic Republic of Iran        Broad-casting, 1989. ##
[7]  Wade,  Paul.Parabolic  Dish  Feeds -  Performance
Analysis,  The  W1GHZ  Online  Microwave  Antenna
Book, 1998, Chapter 11. ##
[8]  Muehldorf  and  I.  Eugen,  “The  phase  center  of  horn
antennas,”  Antennas  and  Propagation,  IEEE  Transac-tions on 18.6, pp. 753-760, 1970.##

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