Active antennas (AAs) are a class of radiation system that integrates an antenna and backing active circuits which results in considerable reduction in complexity of the matching networks and filters [1]. This is done by carefully designing the radiating element to provide proper load for active elements. Hummer and Chang have investigated active antenna elements using a microstrip patch antenn...

Today’s wireless communication world revolutionized organizations who are well advanced (& advancing) in design of full fledged compact high gain noise active antenna. This antenna revolution persuaded us to design an active antenna amplifier. This radio p paved way for us. This project paper describes our verification of active antenna to the pract We thank our supervisor, Professor Göran othe...

This paper describes an easily manufactured, reducedsize, active receiving antenna for automotive applications, which increases short-range wireless detection in the 315-MHz band. This compact antenna has an advantage over currently available antennas because can be hidden in a vehicle’s interior. The active antenna consists of a low-noise amplifier coupled to a low-profile planer meanderline p...

A novel and simple antenna applicable to active RFID tags is designed. The designed antenna has been skillfully integrated with the active RFID tag circuit. The antenna consists of two parts. One part comprises stacked shorted patches and a ground plane. The other one is an active tag circuit mounted on the bottom of the antenna. By using the offset shorting posts technique, the proposed antenn...

Two t>pes of active antenna elements have been studiedexperimentally One type uses a mkrostrip antenna with an active devicemounted directlv on the antenna. The other uses an active device coupledlo a microstrip patch antenna through an aperture. Microstrip activeantenna elements and two-element arrays have been demonstrated for bothtypes of circuits. Injection locking of th...