Design of Null Steering VHF-LB Phased Array Antenna with Genetic Algorithm
نویسنده
چکیده
Genetic algorithm for optimization of beam forming in linear array antenna is used. The goal is to achieve a -30 dB in the null of pattern with the capability of steering the null angle over the all frequency band. Our simulation shows a -30 dB up to -60 dB for this purpose. SPAA (Smart Phased Array Antenna) which is software for analysis, synthesis and simulation of adaptive phased array antenna is introduced.
منابع مشابه
Null Steering GPS Array in the Presence of Mutual Coupling
A null steering GPS antenna array is designed in this paper. In the proposed method, the exact full wave antenna radiation properties with the effect of mutual couplings and nearby scatterers are considered to calculate the array steering vector, precisely. Although the proposed method is not constrained by the array geometry and the antenna element specifications, a five patch antenna elements...
متن کاملPhased array antenna using MEMS phase shifter
This article presents a phased array antenna employing MEMS phase shifter. The proposed phased array antenna consists of eight square patch antennas operating at 10.4 GHz with a bandwidth of 400 MHz. Feed line for each patch passes through a MEMS phase shifter realized by a series of bridges above the transmission line. The distance between the bridge and the transmission line underneath it is ...
متن کاملA Novel Adaptive Beamforming for Radar Systems
Modern Radars use phased array antenna for higher directive gains. These array antennas can be used to form a beam in the desired direction also known as beam steering, if there is any jammer present then it cannot be suppressed by just beamforming or beam steering, in such case we need to use Adaptive antenna. Adaptive antennas use the smart signal processing algorithms also known as adaptive ...
متن کاملImprovement the reflection coefficient of Waveguide-Fed Phased-Array Antenna utilizing Liquid Crystal
Abstract— This work investigates the improvement of the active reflection coefficient of waveguide-fed phased-array antenna using liquid crystal layers. The anisotropy properties of liquid crystal layer can be employed to eliminate blind scan angle and improve the wide angle impedance matching of the waveguide-fed phased array antennas. The authors have expressed the modal analysis of the waveg...
متن کاملInterference Suppression of Linear Antenna Arrays by Amplitude-only Control Using a Bacterial Foraging Algorithm
This paper presents a bacterial foraging algorithm (BFA) for null steering of linear antenna arrays by controlling only the element amplitudes. The BFA is a new evolutionary computing technique based on the foraging behavior of Escherichia (E.) coli bacteria in human intestine. To show the accuracy and flexibility of the proposed BFA, several examples of Chebyshev array pattern with the imposed...
متن کامل