Design of hybrid & power combiner at X-band for UQPSK using microstriplines

Author

Byrareddy, C.R. ; Reddy, N. C Easwar ; Sridhar, C. S S

Author_Institution

Dept. of E&C. Eng., Bangalore Inst. of Technol., Bangalore, India

fYear

2011

fDate

12-13 July 2011

Firstpage

296

Lastpage

301

Abstract

This paper describes the design, simulation, fabrication and testing of a hybrid and power combiner modules of UQPSK modulator at microwave frequency (8-8.4 GHz). An Attenuator module along with Phase-shifter is simulated and tested to make the device more power efficient at X-band. UQPSK Modulator is desired to operate at frequency for transmitting 100MBPS/25MBPS data. This idea of designing attenuator and phase shifter is entirely a new concept to reduce the size and power requirement. Hybrid & power combiner is also fabricated using micro-strip lines which made this device more power efficient and light in weight. This feature of the device meets the requirement of space applications. The simulation has been carried out in EESOF and simulated results are compared with the Experiment results obtained using Network analyzer. The results are as good as conventional Wilkinson dividers.

Keywords

attenuators; microstrip lines; modulators; phase shift keying; phase shifters; power combiners; UQPSK modulator; Wilkinson dividers; X-band; attenuator module; microstrip lines; microwave frequency; network analyzer; phase shifter; power combiner modules; Attenuators; Hybrid power systems; Insertion loss; Integrated circuit modeling; Microwave circuits; Phase shifters; Power combiners; Hybrid; Power combiner; QPSK; X-Band;

fLanguage

English

Publisher

ieee

Conference_Titel

Space Science and Communication (IconSpace), 2011 IEEE International Conference on

Conference_Location

Penang

Print_ISBN

978-1-4577-0563-2

Electronic_ISBN

978-1-4577-0562-5

Type

conf

DOI

10.1109/IConSpace.2011.6015904

Filename

6015904