Title :
Small helical antenna for a personal communication device
Author :
Katz, Daniel ; Levine, Ely
Author_Institution :
Mobit Telecom Ltd., Kiron, Israel
Abstract :
A wrist-type satellite personal locator beacon uses a helical antenna in a shape of a conical spring. The antenna is stowed inside the device and operates while the cover is open and the spring is stretched. The locater transmits 3W to 7W (at 406 MHz) and the antenna gain should be -3 to 4 dBi at elevation sector of 10° to 50°, thus the EIRP should be 32 to 43 dBm. Our optimal design of the helix was tested in Europe and has been approved for use in the CosPas SarSat global Constellation.
Keywords :
conical antennas; helical antennas; personal communication networks; satellite communication; CosPas SarSat global constellation; EIRP; Europe; conical spring; optimal design; personal communication device; power 3 W to 7 W; small helical antenna; wrist-type satellite personal locator beacon; Gain; Helical antennas; Polarization; Springs; Wires; Wrist; Helix antenna; Personal Locator Beacon; Satellite Navigation; Search and Rescue;
Conference_Titel :
Electrical & Electronics Engineers in Israel (IEEEI), 2012 IEEE 27th Convention of
Conference_Location :
Eilat
Print_ISBN :
978-1-4673-4682-5
DOI :
10.1109/EEEI.2012.6376963
