Array and Phased Array Antenna Basics | Wiley Online BooksFigure 1: left two antenna elements fed in phase, right two antenna elements fed out of phase the enlargement link leads to an interactive graphic. A phased array antenna is an array antenna whose single radiators can be fed with different phase shifts. As a result, the common antenna pattern can be steered electronically. The electronic steering is much more flexible and requires less maintenance than the mechanical steering of the antenna. The principle of this antenna is based on the effect of interference , i. So if two radiators emit a signal in the same phase shift, a superposition is achieved - the signal is amplified in the main direction and attenuated in the secondary directions.
Frequency Scanning Array basics & working in Antenna and Wave Propagation by Engineering Funda
An ideal introduction for those without a background in antennas, this clear, concise volume will appeal to technicians, researchers and managers working in academia, government, telecommunications and radio astronomy. It will also be a valuable resource for professionals and postgraduates with some antenna knowledge. If you do not receive an email within 10 minutes, your email address may not be registered, and you may need to create a new Wiley Online Library account. If the address matches an existing account you will receive an email with instructions to retrieve your username. Skip to Main Content. First published: 28 July About this book Reflecting a growing interest in phased array antenna systems, stemming from radar, radio astronomy, mobile communications and satellite broadcasting, Array and Phased Array Antenna Basics introduces the principles of array and phased array antennas.