Title :
3-way low loss phase combiner for power amplifier sharing in 3-sector cellular networks
Author :
Metz, Carsten ; Baras, Torben
Author_Institution :
Bell Labs., Lucent Technol., Murray Hill, NJ, USA
Abstract :
A low loss 3×3-way phase combiner for power amplifier load balancing in 3-sector wireless network cells is presented. Based on an air-filled coaxial double ring structure this design combines very low insertion loss with compact physical profile. Exemplary, the concept is studied for the PCS (personal communication service) transmit band from 1.91 GHz to 1.99 GHz by simulations. Measurements validate the predicted very low insertion loss of 0.05 dB, while return loss and port isolation are both better than 25 dB.
Keywords :
microwave power amplifiers; mobile communication; personal communication networks; power combiners; 0.05 dB; 1.91 to 1.99 GHz; air-filled coaxial double ring structure; butler matrix; cellular networks; insertion loss; load balancing; personal communication service; phase combiner; port isolation; power amplifier sharing; return loss; wireless network cells; Butler matrix; Couplers; Intelligent networks; Land mobile radio cellular systems; Load management; Operational amplifiers; Power amplifiers; Radio frequency; Radiofrequency amplifiers; Wireless networks;
Conference_Titel :
Microwave Symposium Digest, 2004 IEEE MTT-S International
Print_ISBN :
0-7803-8331-1
DOI :
10.1109/MWSYM.2004.1335799
