Design of a High Gain Low Profile Antenna for a Passive Radar

Bhat, Vijayashree; Jacob, Vinod K.; Rakesh, M.; Vinoy, K. J.; Prabhakar, T. V.

doi:10.1109/incap.2018.8770840

Cited by 2 publications

(1 citation statement)

References 8 publications

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“…MULTIBAND passive radar that is based on radio and television signals is a research hotspot nowadays, [1][2][3][4][5] in which the design of broadband receiving antenna is an important research direction. [6][7][8][9][10] According to the published literatures, typical passive radar systems mainly use two independent antenna arrays to receive very high frequency (VHF) signals and ultra-high frequency (UHF) signals. 6,[11][12][13] The elements used for antenna array mainly include common antenna types such as the dipole antenna, the patch antenna, the Yagi antenna, and the disc-cone antenna.…”

Section: Introductionmentioning

confidence: 99%

Design of wideband receiving antenna for VHF / UHF band passive radar

Cao

Zhang

Yunhua

et al. 2022

Int J RF Mic Comp-Aid Eng

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To broaden bandwidth of the receiving antenna for VHF/UHF band passive radar, a broadband improved biconical antenna loaded with resistor-inductorcapacitor (RLC) circuits is designed. Firstly, by introducing six metal rods into the biconical antenna to replace part of the cone, the feature size of the antenna is effectively reduced. Secondly, by introducing six parallel RLCloading circuits into the antenna, the bandwidth of the antenna at the low frequency end is effectively broadened, and at the meantime mutual coupling of the array composed of the proposed antenna becomes weak. The measured results show that the impedance bandwidth of the antenna corresponding to reflection coefficient less than À10 dB is 174-843 MHz. Moreover, the antenna also has good omnidirectional pattern in the horizontal plane, and the pattern characteristics have good consistency in the whole impedance bandwidth.

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