Experimental Investigation of Active Antenna

Abstract

Further investigations in design and operation of the active RX-TX antenna are discussed in the paper. The design of active antenna is realized due to the use of regenerative reflective amplifier, which has an opened resonant system. This resonant system (microstrip patch) effectively radiates and receives the microwave. The experimental investigations in gain increasing of active RX-TX antenna are presented in this section of studies. It is shown the active antenna can operate in receiving and transmitting modes. No switching between these modes does need to be implemented. Described active antenna can operate in both modes simultaneously. The active antenna possesses the simplest design, it has perfect electrical characteristics, and in conjunction with mentioned above operation features one makes this active antenna irreplaceable in a lot of applications, first of all in transponder design of RFID system, in antenna array design etc.