A Study on Calculation and Comparison for VHF, UHF, L-Band RCS

임세하,; 이승재,; 최인식,; 이태승,

doi:10.14801/jkiit.2016.14.5.59

Cited by 3 publications

(1 citation statement)

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“…Because the wing or engine dimensions of stealth aircraft are similar to the wavelength in the VHF band, the low RCS characteristic can be neutralized. [1][2][3] In addition, since the thickness (0.01-0.1 λ) of the dielectric RAM in the VHF band is too thick to be applied to stealth aircraft, VHF band radar can detect stealth targets. The UHF band (420-450 MHz) is used for very long range early-warning radar (EWR) to detect ballistic missiles and/or aircraft 4,5 .…”

Section: Introductionmentioning

confidence: 99%

A compact VHF/UHF band quasi‐Yagi antenna for multifunction radar applications

Kim

Han

Jang

et al. 2018

Micro & Optical Tech Letters

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A compact quasi‐yagi antenna for multifunction radar applications is proposed, consisting of a dual dipole‐driven element, a half bow‐tie reflector and a bow‐tie director. Size reduction is achieved by adding the half bow‐tie reflector structure. Addition of the half bow‐tie reflector and bow‐tie director improves the gain and front‐to‐back ratio in the Very high frequency (VHF)/Ultra high frequency (UHF) band. The measured −10 dB reflection coefficient bandwidths fully cover the VHF and UHF bands. The measured gain and front‐to‐back ratio (FBR) at 226.5 MHz are 5.63 dBi and 9.39 dB, respectively. The measured gain and FBR at 435 MHz are 5.79 dBi and 9.13 dB, respectively. Therefore, the proposed antenna is suitable for VHF/UHF band multifunction radar applications.

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Section: Introductionmentioning

confidence: 99%