Title :
The Wheeler Method for the Measurement of the Efficiency of Differentially-Driven Microstrip Antennas
Author :
Yue Ping Zhang ; Zihao Chen
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore
Abstract :
This communication reports the application of the Wheeler method for the measurement of the efficiency of differentially-driven microstrip antennas. The S-parameter method and the mixed-mode S-parameter method are both used to obtain the differential impedance with and without the cap. It is shown that although additional parasitic inductance and capacitance are introduced from the dual feeds, the parallel RLC model is the valid model to use for the measured probe-fed differentially-driven microstrip antennas.
Keywords :
RLC circuits; S-parameters; capacitance; inductance; microstrip antennas; RLC model; Wheeler method; differential impedance; differentially-driven microstrip antennas; mixed-mode S-parameter method; parasitic capacitance; parasitic inductance; Antenna measurements; Feeds; Microstrip; Microstrip antennas; Scattering parameters; Differential impedance; Wheeler method; microstrip antenna; radiation efficiency;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2014.2314736
