منابع مشابه
A New Design of Log-Periodic Dipole Array (LPDA) Antenna
This paper presents a new approach for design of the log-periodic dipole array antenna (LPDA) based on using of different design parameters in the LPDA elements to control the antenna behavior. In the proposed procedure, the design parameters can control the value of forward gain over the operating frequency range, and also adjust the gain flatness. Furthermore, this design procedure can decrea...
متن کاملPrecise Analysis of Commercial Log-periodic Dipole Arrays Using Wire-antenna Algorithms
The log-periodic dipole array (LPDA) has become the most popular commercial antenna for reception of TV signal in VHF and UHF bands in Europe. The antenna consists of two booms of a square cross section to which dipoles are attached (Figure 1). The booms play the role of the feeding two-conductor line. The dimensions of the boom are relatively large compared to the wavelength and the dipole len...
متن کاملA Printed Log-periodic Tree-dipole Antenna (plptda)
Abstract—A miniaturized printed log-periodic fractal dipole antenna is proposed. Tree fractal structure is introduced in an antenna design and evolves the traditional Euclidean log-periodic dipole array into the log-periodic second-iteration tree-dipole array (LPT2DA) for the first time. Main parameters and characteristics of the proposed antenna are discussed. A fabricated proof-of-concept pro...
متن کاملDesign Optimization of Log Periodic Dipole Antenna Using Genetic Algorithm
In this paper,design optimization of Log Periodic Dipole Antenna (LPDA) has been carried out using Genetic Algorithm. The design objectives of this work is maximization of gain and minimization of VSWR.This has been achieved by variations in geometrical parameters of log periodic dipole antenna like maximum length, minimum length,spacing factor (σ). The simulation results have attained gain fro...
متن کاملModification and Performance of Log Periodic Dipole Antenna
–Technological advances and developments in solar activities, particularly in solar radio bursts, have created a demand of constructing log periodic dipole antenna (LPDA) to monitor this phenomenon in radio region. In this paper, we make an effort in designing a portable LPDA that suitable with the criteria, specification and practical enough although is the boom length size of the antenna is 3...
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ژورنال
عنوان ژورنال: IRE Transactions on Antennas and Propagation
سال: 1960
ISSN: 0096-1973
DOI: 10.1109/tap.1960.1144848