A study on the analysis and design of active integrated antennas based on active quasi-circulators is reported in this paper. The antenna consists of a novel hybrid active circulator and a short-circuited quarter-wavelength microstrip antenna, which combine to form an active antenna with transmit and receive action at the same frequency. A full-wave model of the configuration using the extended finite-difference time-domain method is devised to analyze its operation, to study parasitic electromagnetic coupling effects, and to derive design guidelines. Experimental results for a hybrid model are also presented.
|Translated title of the contribution||Analysis and design of integrated active circulator antennas|
|Pages (from-to)||1017 - 1023|
|Number of pages||7|
|Journal||IEEE Transactions on Microwave Theory and Techniques|
|Publication status||Published - Jun 2000|