Title :
Coaxial helical antenna with improved isolation
Author :
Mikryukov, A.S. ; Dubrovka, F.F. ; Yurtsev, O.A.
Author_Institution :
Sci. Center of Control, Intelligence Service & radio Electron. Counter Meas., Kiev, Ukraine
Abstract :
Two cylindric helical antennas (CHA) being exited in an axial radiation mode at different frequencies have different helix diameters, and they can be placed in a coaxial manner one inside the other. To obtain electrical characteristics of a coaxial helical antenna (COHA) similar to the characteristics of the single CHA in the required frequency band, it is necessary in the design to ensure an improvement in the isolation between the helices. In this work the band properties of a COHA and ways to improve the isolation between helices are considered.
Keywords :
antenna theory; helical antennas; axial radiation mode; band properties; coaxial helical antenna; cylindric helical configuration; electrical characteristics; isolation; Antenna measurements; Coaxial components; Electric variables; Equations; Frequency; Helical antennas; Intelligent control; Organizing; Radiation detectors; Radio control;
Conference_Titel :
Microwave Conference, 1999. Microwave & Telecommunication Technology. 1999 9th International Crimean [In Russian with English abstracts]
Conference_Location :
Sevastopol, Crimea, Ukraine
Print_ISBN :
966-572-003-1
DOI :
10.1109/CRMICO.1999.815196
