Title :
A new active array module for spatial power combiners and active antennas
Author :
Shen, Ying ; Laperie, C. ; Sangary, Nagula ; Litva, John
Author_Institution :
Harris Farinon Canada Inc., Que., Canada
fDate :
3/1/1995 12:00:00 AM
Abstract :
We present the design and performance of a new module of spatial power combiners, which consists of four symmetrical slot coupled patch radiators and four MESFET negative resistance elements, based on a single active antenna design. These circuits are suitable for use in millimeter-wave systems as well as at microwave frequencies. Tests carried out with a prototype circuit showed a radiated power of 20.44 mW with about 16% DC-to-RF efficiency at 8.7 GHz. Feed networks for linear polarization and circular polarization are discussed. Design procedures for dual-frequency application are also addressed
Keywords :
MESFET circuits; active antenna arrays; antenna feeds; antenna radiation patterns; electromagnetic wave polarisation; microstrip antenna arrays; microwave integrated circuits; millimetre wave antenna arrays; modules; negative resistance devices; power combiners; 16 percent; 20.44 W; 8.7 GHz; MESFET negative resistance elements; active antennas; active array module; circular polarization; dual-frequency application; feed networks; linear polarization; microwave frequencies; millimeter-wave systems; spatial power combiners; symmetrical slot coupled patch radiators; Circuit testing; Coupling circuits; MESFETs; Microwave circuits; Microwave frequencies; Millimeter wave circuits; Polarization; Power combiners; Prototypes; Slot antennas;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
