Title :
Wideband printed log-periodic balun
Author_Institution :
Center for Electromagn., SAMEER, Chennai, India
Abstract :
A compact printed log-periodic balance to unbalance (balun) transformer capable of operating over an octave band is presented for tunable antennas used for calibration measurements (ANSI C63.5). The balun can achieve more than octave bandwidth (0.8 GHz to 2.4 GHz) impedance match (VSWR < 2) with a magnitude balance at the output ports of ± 0.5 dB and a phase balance of 180° ± 5°. Advanced microwave design systems package is used to optimize the balun performance over the wideband and the simulated results are compared with measured results.
Keywords :
baluns; log periodic antennas; microstrip antennas; 0.8 to 2.4 GHz; ANSI C63.5; balance-to-unbalance transformer; balun performance optimization; calibration measurements; impedance match; microwave design systems package; octave band; printed log-periodic balun; tunable antennas; wideband log-periodic balun; Antenna measurements; Broadband antennas; Calibration; Dielectric measurements; Frequency; Impedance matching; Packaging; Performance evaluation; Testing; Wideband;
Conference_Titel :
Electromagnetic Interference and Compatibility, 2003. INCEMIC 2003. 8th International Conference on
Print_ISBN :
81-900652-1-1
DOI :
10.1109/ICEMIC.2003.1287862
