A novel automatic control system for frequency reconfigurable PIFA antenna

Abstract

A novel control system for frequency reconfigurable planar invert F antenna (FRPIFA antenna) using microcontroller (MCU) is presented. The use of a MCU allows custom adjustment of the operation of PIN diode through the program and also allows an easy connection between Personal Computer (PC), Energy Detector (ED) and antenna. The MCU then processes the data obtained from those devices and produces feedback signals, based upon which system automatically corrects the antenna. Simulation and measurement results of antenna parameters validate the performance as well as the application of the developed antenna.