RADIATION PATTERNS SYNTHESIS FOR A CONFORMAL DIPOLE ANTENNA ARRAY

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...

Engineering antenna radiation patterns via quasi-conformal mappings.

We use a combination of conformal and quasi-conformal mappings to engineer isotropic electromagnetic devices that modify the omnidirectional radiation pattern of a point source. For TE waves, the designed devices are also non-magnetic. The flexibility offered by the proposed method is much higher than that achieved with conformal mappings. As a result, it is shown that complex radiation pattern...

Numerical method for analysis of radiation from thin wire dipole antenna

Software for Synthesis of Radiation Patterns by Linear Antenna Arrays

This paper presents the characteristics of a software developed on MatLab Scripts to obtain the synthesis of radiation patterns, using linear antenna arrays. Several classical techniques have been considered such as Schelkunoff method, Fourier series and transform methods, Woodward-Lawson method, Taylor line-source methods. In all those cases, algorithms were developed and the results agree wit...

Optimum Design of Conformal Array Antenna with a Shaped Radiation Pattern and Wideband Feeding Network

─ In the present work, a circular conformal array with wideband printed dipole antennas and wideband feeding network has been designed to obtain a fully constrained cosecant squared radiation pattern using particle swarm optimization (PSO) algorithm and mutual coupling compensation. Using the circular conformal design leads to a decrease of around 33% of the length of the array antenna compared...