Title :
Analysis and measurement of QKA antennas
Author :
Gay-Balmaz, P. ; Zurcher, J.-F. ; Mosig, J.R.
Author_Institution :
Lab. d´Electromagn. et d´Acoust., Ecole Polytech. Federale de Lausanne, Switzerland
Abstract :
Quadripod kettle antennas (QKA) are low-profile devices knowing to produce a quasi-omnidirectional radiation pattern. In this paper, a simplified QKA geometry is proposed. The theoretical analysis is rigorously made with the help of a mixed potential integral equation (MPIE) model. This model is generalized to account for the vertical metallic segments connecting the different levels of the QKA. Powerful integration techniques applied to space domain Green´s functions allow eventual modeling of QKAs embedded into multilayered substrates. Careful measurements of prototypes realized on beryllium bronze with an etching process reveal a very good agreement with theoretical predictions.
Keywords :
Green´s function methods; antenna radiation patterns; integral equations; integration; microwave antennas; 5 GHz; MPIE model; QKA antennas; QKA geometry; beryllium bronze; embedded antenna; etching process; integration techniques; low-profile devices; mixed potential integral equation model; multilayered substrates; prototypes; quadripod kettle antennas; quasi-omnidirectional radiation pattern; space domain Green´s functions; vertical metallic segments; Antenna measurements; Antenna radiation patterns; Coaxial components; Green´s function methods; Helical antennas; Integral equations; Microstrip antennas; Performance analysis; Probes; Shape measurement;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1997. IEEE., 1997 Digest
Conference_Location :
Montreal, Quebec, Canada
Print_ISBN :
0-7803-4178-3
DOI :
10.1109/APS.1997.630198
