Title :
A medium power two-stage balanced amplifier with 21.7 dB gain for S-band telemetry
Author :
Awan, D.A. ; Sadiq, M.U. ; Noshad, M.A. ; Amin, M.
Author_Institution :
Inst. of Space Technol., Islamabad, Pakistan
Abstract :
A two stage medium-power balanced amplifier was designed using small signal S-parameters model on a low cost FR4 substrate and fabricated for S-band telemetry application. From the measured results, an output power up to 26.58-dBm was achieved with a maximum gain ripple of ± 1.5 dB over frequency range of 2.45-2.55 GHz which is in very good agreement with simulation results. An effective technique, that is, low frequency termination network was employed and modified for broadband stability.
Keywords :
S-parameters; UHF amplifiers; differential amplifiers; directional couplers; driver circuits; microwave amplifiers; radiotelemetry; FR4 substrate; S-band telemetry; broadband stability; directional coupler; driver amplifier; frequency 2.45 GHz to 2.55 GHz; gain 21.7 dB; gain ripple; low frequency termination network; medium power two-stage balanced amplifier; quadrature hybrid coupler; small signal S-parameter model; Frequency measurement; Gain; Gain measurement; Gold; Load modeling; Manuals; USA Councils;
Conference_Titel :
Applied Sciences and Technology (IBCAST), 2009 6th International Bhurban Conference on
Conference_Location :
Islamabad
Print_ISBN :
978-1-4244-8650-2
Electronic_ISBN :
978-969-8741-07-5
