Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
Antenna efficiency is the ratio of the measured gain and calculated directivity.
The directivity is usually calculated from the aperture size and wavelength.
Gain measurement is best done on an open range; in aperture antennas the beam is often formed far away from the aperture; this is difficult to do in an anechoic chamber.
Using the near-field to far-field procedure is mainly useful to measure the full radiation pattern than the main beam while the main beam width determines the gain.
Details can be found in many books and manuals, also Agilent white paper.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
