DocumentCode :
2946667
Title :
Amplifier selection method of array feed element for achieving the minimum power consumption
Author :
Nakanishi, Takayuki ; Kihira, Kazunari ; Takahashi, Toru ; Konishi, Yoshihiko ; Chiba, Isaum
Author_Institution :
Inf. Technol. R&D Center, Mitsubishi Electr. Corp., Kamakura, Japan
fYear :
2011
fDate :
3-8 July 2011
Firstpage :
3018
Lastpage :
3021
Abstract :
Multibeam satellite systems with tens of spot beams have been developed and studied. A Multibeam satellite system realizes adaptive frequency allocation for efficient frequency reuse, and has the flexibility to control traffic in communication. When natural disasters happen, the communications traffics concentrate at the area because many people use cellular phones and access to the Internet. The corresponding beam to the area requires the highest output power operation in the emergency case. The amplifiers consist of the beam is operated at the required output power (ROP) in the emergency case. Generally, all amplifiers have the same maximum output power (MOP). However, not all the amplifiers require the same power as the MOP. The amplifier whose MOP is much higher than the ROP has low efficiency. In this paper, to minimize the power consumption of array-fed element, we propose the method how to select the MOP for each amplifier of antenna element of array antenna system.
Keywords :
amplifiers; antenna arrays; frequency allocation; multibeam antennas; satellite antennas; telecommunication traffic; Internet; adaptive frequency allocation; amplifier selection method; array antenna system; array feed element; cellular phones; communication traffics; frequency reuse; maximum output power; minimum power consumption; multibeam satellite systems; Antenna arrays; Arrays; Feeds; Power amplifiers; Power demand; Power generation; Satellites; Amplifier; Array Feed Element; Multibeam Antenna; Power Consumption;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Antennas and Propagation (APSURSI), 2011 IEEE International Symposium on
Conference_Location :
Spokane, WA
ISSN :
1522-3965
Print_ISBN :
978-1-4244-9562-7
Type :
conf
DOI :
10.1109/APS.2011.5997165
Filename :
5997165
Link To Document :
بازگشت