Özet:

One of the most important features of modern communication systems is the ability to scan electronics. Today, communication applications use electronic scanning methods such as frequency scanning, time-distanced scanning, phase scanning. Research is ongoing for new and cheaper electronic scan methods. In this work, the design and hardware of the smart antenna system based on the Electrically Steerable Passive Array Radiator ESPAR (ETPID) with the ability to direct the electronic turning has been carried out. The antenna design includes the definitions of the design parameters, comparison results, production and measurement results. It is designed with seven-elements ETPID antenna, active central element and six passive elements. While varicose diots are charged on the parasitic elements, the values of the reaction loads of the passive dipol elements are changed and the maximum (maximum) gain is easily directed to the desired direction. The parasitic elements have the same pattern direction for all frequencies in the band where one of the reaction loads is controlled. The seven-element ETPID antenna is designed. The seven-elements ETPID antenna is designed to have the ability to direct dynamic radiation. 7dB gains have been obtained in the specified directions of Theta and Phi. The bandwidth of the designed antenna is 450 MHz and the radiation is 360 degrees directed. As a result of measurements made using variable capacities, the electrical fusion scan was carried out with the capacity change of the varactor diots.

Anahtar Kelimeler: