C/Ku-band pulsed transmitters for Poseidon 2 Altimeter

Darbandi, A.; Michaud, G.; Buret, H.; Touchais, J.Y.; Fourcroy, J.; Bulgarelli, J.

doi:10.1109/mwsym.2001.967355

2001 IEEE MTT-S International Microwave Sympsoium Digest (Cat. No.01CH37157)

DOI: 10.1109/mwsym.2001.967355

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C/Ku-band pulsed transmitters for Poseidon 2 Altimeter

A. Darbandi¹,

G. Michaud²,

H. Buret³

et al.

Abstract: Solid State Transmitters (Tx) have been used in radar application for many years. The main advantages of the pulsed Tx are the followings: -Low distortion of amplitude and phase during the pulse. -High reproducibility of identical pulses. -High quality of output spectrum: low harmonic contents and reduced delay time. In this paper we present the design and the measured results of 30W C-band Transmitter and 8W Ku band Transmitter ,used for the Poseidon 2 Altimeter. (Jason satellite).9

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Cited by 2 publications

References 3 publications

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New generation of RF unit for radar altimeter

Michaud¹,

Bulgarelli²,

Pouysegur³

et al. 2001

31st European Microwave Conference, 2001

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Alcatel developed a new generation of dual-frequency radar altimeter (POSEIDON 2) which works in C and Ku band. This article discusses about the radiofrequency unit (RFU) which plays a major role for the stringent performances of the altimeter. The compact RF unit has been designed with a modular concept. It uses the new advanced technologies: extensively use of MMIC, pHemt LNA and hybrid HFET power amplifiers. The transmitted peak power level is greater than 23W in C band and 7W in Ku band.

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New generation of RF unit for radar altimeter

Michaud¹,

Bulgarelli²,

Pouysegur³

et al. 2001

31st European Microwave Conference, 2001

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Ku -Band Solid State Power Amplifier For Siral Altimeter

Darbandi¹,

Lavielle²,

Naudy³

et al. 2002

32nd European Microwave Conference, 2002

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A compact, high efficiency 25W Kuband SSPA has been developed for the Siral Altimeter, cryosat program. SSPAs have been used in radar application for many years. The main advantages of the pulsed SSPAs are the followings: -Low distortion of amplitude and phase during the pulse.-High reproducibility of identical pulses. -High quality of output spectrum: low harmonic contents and reduced group delay time.This SSPA combines the output of four 8W-hybrid PHEMT modules with an integral waveguide combiner. AM/PM conversion was measured at 0.5 degree / dB and the phase shift were measured less than 5 degree.

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C/Ku-band pulsed transmitters for Poseidon 2 Altimeter

Cited by 2 publications

References 3 publications

New generation of RF unit for radar altimeter

New generation of RF unit for radar altimeter

Ku -Band Solid State Power Amplifier For Siral Altimeter

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