Title :
Detection of parasitic radiation, high-altitude fields, crosstalk and grounding inefficiency in the antenna feed lines by near-field scanning
Author :
Zlatkov, Kaloyan I. ; Dankov, Plamen I.
Author_Institution :
Fac. of Phys., Sofia Univ., Sofia, Bulgaria
Abstract :
The paper considers several spread problems, which take place in many microwave non-antenna devices (antenna feed lines, hybrids, filters, diplexers, LNAs, etc.) - parasitic radiation, “high-altitude” fields, crosstalk, grounding inefficiency. Near-field scanning has been used for their detection and then, for verification of their minimization. Some practical design rules have been discussed to avoid these problems in the multi-layer antenna arrays.
Keywords :
antenna arrays; antenna feeds; antenna radiation patterns; antenna feed lines; crosstalk; grounding inefficiency; high-altitude fields; microwave nonantenna devices; multilayer antenna arrays; near-field scanning; parasitic radiation detection; Antenna feeds; Grounding; Microstrip; Microwave filters; Radio frequency; Resonant frequency; RF grounding; antenna feed lines; near-field scan; parasitic radiation;
Conference_Titel :
Telecommunications Forum (TELFOR), 2011 19th
Conference_Location :
Belgrade
Print_ISBN :
978-1-4577-1499-3
DOI :
10.1109/TELFOR.2011.6143723
