Design of high power amplifier based on wilkinson power combiner for wireless communications

Abstract

Thisarticlepresentsthedesign and fabrication ofa high power amplifierbased onwilkinson power combiner. A 45W basic amplifier module isdesigned usinglaterally-diffused metal-oxide semiconductor (LDMOS) fieldeffect transistor (FET) PTFA260451E transistor. Wilkinson power combineris used to combine two input powers toproduce 90W of power. Theproposed power amplifier is researched, designed and optimized usingadvanced design system(ADS) software.Experimental results show that thegain is 11.5 dB greater than at 2.45-3.0GHz frequency band and achieving maximum power gain of 13.5dB at 2.65GHz centre frequency; output power increased to 49.3dBm; Power added efficiency of 62.1% and good impedances matching: input reflection coefficient (S11)<-10dB, output reflection coefficient (S22)<-15dB. The designed amplifier can be used for4G, 5G mobile communications andS-band satellite communication.

Design and implementation of an S-band transmitter for nanosatellites with new configuration

“…Depending on purpose and requirement of user such as: weight, size, volume, budget, orbit, altitude, lifetime or payload of satellite, each transmitter was designed to satisfy these requirements [1]- [25]. These transmitters focused on solving problems: survey and compare result of method approaches [5], [6], effect of environment to this module [2], increase bandwidth [5], [11], [14], [21], increase power output [7], [16], decrease cost [3], approach very high speed integrated circuit (VHSIC) hardware description language (VHDL) in modulator [15]. Recently, variety of transmitter approached multi-stages power amplifier [11]- [13], [22], [23], or using Wilkinson power combiner method [7], [10], using technology in transmitter architecture [17] to increase power output.…”

“…These transmitters focused on solving problems: survey and compare result of method approaches [5], [6], effect of environment to this module [2], increase bandwidth [5], [11], [14], [21], increase power output [7], [16], decrease cost [3], approach very high speed integrated circuit (VHSIC) hardware description language (VHDL) in modulator [15]. Recently, variety of transmitter approached multi-stages power amplifier [11]- [13], [22], [23], or using Wilkinson power combiner method [7], [10], using technology in transmitter architecture [17] to increase power output. However, these designs have low reliability and only apply to a permanent system.…”