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Based on double-balanced feed structure strong mutual coupling broadband phased array

Author: LiLei
Tutor: YangShiWen
School: University of Electronic Science and Technology
Course: Electromagnetic Field and Microwave Technology
Keywords: Phased array Broadband array Mutual coupling effect Feed Barron
CLC: TN821.8
Type: Master's thesis
Year: 2010
Downloads: 61
Quote: 1
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Abstract


Wideband phased array antenna beam electronic scanning frequency bandwidth advantages in radar, electronic warfare , communications and other fields have a wide range of application requirements . Wideband phased array antenna design generally follow the first design the wider band antenna unit then arraying principle and element mutual coupling effect as negative factors need mutual coupling compensation . Therefore, the expansion of the bandwidth of a phased array antenna is often limited. In this paper, a based on an enhanced wideband phased array antenna mutual coupling effect carried out research work and experimental validation . The main content of the paper includes the following sections: Firstly broadband phased array antenna and broadband research background and significance , as well as domestic and foreign research status quo ; Secondly, the paper Smith chart and the concept of equivalent circuit on Mutual give a detailed analysis of the basic principle of the phased array broadband coupling effects ; third, based on the theoretical analysis , using electromagnetic simulation software to design broadband over four octave range wide scan angle phased array one-dimensional printing dipole wire antenna array structure and designed a form of such an antenna supporting the use of double-balanced feed Barron knot . Simulation results show that the use of the double-balanced feeding balun Results can be effective in improving the impedance matching between the antenna and the power feeding structure effects . Finally, the 1 × 8 Wideband Phased Array array feed network layout design, processing, assembly , and testing of the wideband phased array array . The test results show that the broadband phased array expected broadband features and wide-angle scanning characteristics .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Radio equipment,telecommunications equipment > Antenna > Antenna: work principle > Phased array antenna
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