Synthesis and implementation aspects of linear antenna arrays with shaped radiation pattern for mobile communications. Issue 4 (1st March 2016)

• Record Type: Journal Article
• Authors: Schlosser, Edson R.; Heckler, Marcos V.T.; Machado, Renato; Tinoco Salazar, Alexis Fabricio
• Is Part Of: IET microwaves, antennas & propagation. Volume 10:Issue 4(2016)
• Page Start: 442
• Page End: 452
• Publication Date: 2016-03-01
• Subjects: antenna radiation patterns -- linear antenna arrays -- genetic algorithms -- quadratic programming -- mobile communication; linear antenna arrays -- shaped radiation pattern -- design antenna arrays -- optimisation -- linear microstrip array -- mobile communication systems -- uniform distribution -- genetic algorithm -- sequential quadratic programming -- isotropic antennas -- radiation properties -- mutual coupling -- edge effects -- feeding system; Microwaves -- Periodicals; Microwave antennas -- Periodicals; Antennas (Electronics) -- Periodicals; Radio wave propagation -- Periodicals; Microwave communication systems -- Periodicals; 621.381305
• DOI: 10.1049/iet-map.2015.0269
• Languages: English
• ISSNs: 1751-8725

Abstract

Abstract : This study presents a technique to design antenna arrays with shaped radiation pattern. The efficiency of the proposed technique is demonstrated for the optimisation of a linear microstrip array for radio base stations of mobile communication systems. The main beam is shaped so as to provide uniform distribution of power inside a sector of a cell and to minimise the power radiated above the horizon. The synthesis of the shaped pattern is achieved by a combination of genetic algorithm and sequential quadratic programming. In contrast to several papers found in the literature that consider only isotropic antennas, the proposed approach takes into account all the radiation properties of small arrays, such as the mutual coupling between the array elements and edge effects. Finally, the design of the feeding system to produce the synthesised pattern is discussed. Measurements are used to validate the proposed technique.