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Final Programme

Multipactor, RF and DC Corona,
and Passive InterModulation
in Space RF Hardware

WORKSHOP
4-6 September 2000
ESTEC, Noordwijk, The Netherlands

Organised by the European Space Agency
In co-operation with CNES

INTRODUCTION
Multipactor, Corona and Passive InterModulation (PIM) are anomalous effects that continue to be a problem in modern satellite systems due to increased transmit power, frequencies and wider bandwidth. This workshop is organised as a follow up to the last workshop that was held in March 1996.

Modern satellite structures are made of composite material with high out-gassing properties. Venting has to be adequate; to prevent Corona discharges at Turn-On of the payloads.
The study of different types of surface treatments to reduce secondary emission in high power R.F. Hardware, is a key element in reducing the risk of Multipactor discharge.

PIM continues to be a problem from L-band up to Ka-Band. With higher frequency transmitters on board, there is high probability that lower order PIM will fall in the receive band.
With increased number of transmitters on modern spacecraft and vicinity of the transmitting antennas, the spacecraft structure begins to play a major roll in generation of PIM.
Low PIM design and measurement can no longer be constraint to output components common to both transmit and receive paths, the complete satellite including the payloads has to be developed and measured for PIM.

GENERAL INFORMATION

REGISTRATION
To register for the Workshop, please complete the registration form included in this preliminary programme and fax it to the ESTEC Conference Bureau. There is no registration fee for this Workshop.

The registration desk for the Workshop will open at 11:00 on Monday 4 September 2000 at the entrance of the ESTEC Conference Centre where pre-registered participants will be able to collect their badges and abstract books.

ACCOMMODATION
A number of rooms have been pre-reserved at special rates in Noordwijk and its surroundings. Please complete the hotel reservation form included in this preliminary programme and fax or mail it to the ESTEC Hotel Reservation Service before 1 August 2000. As the period of the Symposium is also a busy time in Noordwijk, we strongly advise you to send the form back before 1 August 2000, availability cannot be guaranteed after this date.

BANK/TRAVEL SERVICES
The services of the ABN AMRO bank at ESTEC and of the in-house travel office will be available to the participants.

FINAL PROGRAMME

Monday 4 September 2000

11:00Start registration
12:00Opening of the Workshop

Session: Corona
Chairman: J. Sombrin, CNES, France
12:10Introduction of the Session
12:20Fundamentals about Breakdown of Gases
Catani, J-P.; CNES, France
12:40Microwave Breakdown in Space RF Hardware
Gutierrez, R.; Puech, J.; Alcatel Space Industries, France
13:00Lunch
14:00Electrical Breakdown in Hermetically Sealed Microwave Components
Rawlins, A.D.; The University of Kent, United Kingdom
14:20Microwave Breakdown in Resonators and Filters
Anderson, D.*; Jordan, U.; Lisak, M.*; Olsson, T.*; Semenov, V.**;
* Chalmers University of Technology, Sweden, ** Institute of Applied Physics, Russian Federation
14:40Dealing with High RF Power / XM-Radio Payload Experience
Salomon, M.; Alcatel Space Industries, France
15:00Electron Transport and Secondary Emission in a Surface of Solar Cells
Degond, P.; Talaalout, R.; Vignal, M.H.; MIP, UMR CNRS 5640, France
15:20Ionization Instabilities in Positively Biased Spacecrafts at Low Earth Orbit
Conde, L.*; Ferro-Fontan, C.**; Jolliet, E.**;
* ETSI Aeronauticos, Spain; ** U. Computense de Madrid, Spain
15:40Coffee break
16:00Round Table Discussion
17:15Welcome Drink

Tuesday 5 September 2000


Session: Multipactor
Chairman: D. Wolk, Bosch Telecom, Germany
09:00Introduction of the Session
09:20Multipactor Breakdown in Multi-Carrier Operation
Semenov, V.*; Kryachev, A.*; Anderson, D.**; Lisak, M.**;
* Institute of Applied Physics, Russian Federation; ** Chalmers University of Technology, Sweden
09:40The Significance of Amplitude and Time Statistics of Multiple Carrier Signals for Multipactor Testing
Friederichs, L.; AUDENS Telecommunications Consulting GmbH, Germany
10:00A Novel Approach for Calculating the Multipaction Threshold Level in Multicarrier Operation
Wolk, D.; Schmitt, D.; Bosch Telecom, Germany
10:20Multicarrier Multipator Cumulated Time Calculation and Worst Case Phase Excitation Determination
Mangenot, C.*; Courtonne, V.*; Muradore, F.**; Masmoudi, M.**;
* Alcatel Space Industries, France; ** CNRS-Universite Paul Sabatier-INSA
10:40Coffee break
11:00Nanostructured Materials for Antimultipactor Applications in Earth Remote Sensing Equipment in Space Missions
Montero, I.*; Diaz, N.**; Segovia, J.L.*; Vazquez, L.*; Ripalda, J.M.**; Roman, E.*; Galan, L.**;
* CSIC, Spain,** Universidad Autonoma de Madrid, Spain
11:20Low Secondary Electron Emission TiN, CrN and CN Coatings and Applications to Prevent Multipactor
Diaz., N.*; Castaneda, S.*; Montero, I.**; Raboso, D.***; Galan, L.*; Rueda, F.*;
* Universidad Autonoma de Madrid, Spain,** CSIC, Spain,*** ESA/ESTEC, The Netherlands
11:40Multipactor Investigations on Magnesium Alloy Silver Plated and Coated with Chem. Glaze
Raboso, D.*; Lemus, D.*; Duchesne, L.**; Rinous, P.*;
* ESA/ESTEC, The Netherlands,** Dornier Satellitensysteme GmbH, Germany
12:00New Results on Power Behaviour of High Power Isolators used in Satellite Payloads
Laroche, Eric; Temex Components, France
12:20Multipaction Analysis in High Power Antenna Diplexers for Satellite Applications
Ludovico, M.; Accatino, L.; CSELT, Italy
12:40A Simplified Analysis for High Power Microwave Bandpass Filter Structures
Yu, M.; Sivadas, A.; COM DEV International, Canada
13:00Lunch
14:00ALCATEL Guideline to avoid Multipactor Effects in RF Space Equipments
Geneste, X.; Alcatel Space Industries, Spain
14:20The Production of a Multipactor Requirements Document
Pimm, I.; ESA/ESTEC, The Netherlands
14:40Generation of High Equivalent Peak Powers in Coaxial Filter Cavities
Harish, A.; Petit, J.; ComDev Wireless Group, Canada
15:00Microwave Breakdown in O.M.U.X. Filters: A Theoretical Investigation
Boussavie, C.; Baillargeat, D.; Aubourg, M.; Verdeyme, S.; Guillon, P.; Champeaux, C.; Catherinot, A.; University de Limoges, France
15:20Coffee break
15:40Round Table Discussion
17:00End of the Day

Wednesday 6 September 2000


Session: PIM
Chairman: A. Rawlins, Kent University, UK
09:00Introduction of the Session
09:20Passive Intermodulation Considerations for Communications Satellites
Joshi, J.; ESA/ESTEC, The Netherlands
09:40Software Development for Passive WG Components
Guglielmi, M.; ESA/ESTEC, The Netherlands
10:00Passive Intermodulation Testing of RF Cable Assemblies in Long Duration Thermal Cycling
Rawlins, A.D.*; Petit, J.**;
* The University of Kent, United Kingdom,** Comdev Wireless, United Kingdom
10:20ALCATEL Guideline to avoid PIMP (Passive InterModulation Products) Effects in RF Space Equipments
Geneste, X.; Alcatel Space Industries, France
10:40Coffee break
11:00PIM Testing of a Satellite: the ARTEMIS Experience
Pullara, A.*; Oppenhaeuser, G.**;
* Alenia Spazio, Italy; ** ESA/ESTEC, The Netherlands
11:20Passive Intermodulation Testing at Temperature Extremes
Dumoulin, J-G.; Charron, P.; David Florida Laboratory, Canada
11:40Collocated Passive and Active Intermodulation Effects
Gavan, J.; Fellow IEEE
12:00Round Table Discussion
13:00End of the Workshop

PROGRAMME COMMITTEE
A. Derderian, ESTEC
D. Raboso, ESTEC
I. Pimm, ESTEC/SERCO
Y. Menard, ESTEC
D. Olsson, ESTEC
J. Sombrin CNES (F) Chairman (RF & DC Corona)
D. Wolk, Bosch Telecom (D) Chairman (Multipactor)
A. Rawlins, Kent University (UK) Chairman (PIM)
A. Dyne, MMS-UK (UK)
L. Friederichs, AUDENS (D)

CONTACTS
Should you have any questions you can contact:

For technical matters
Mr. Armen Derderian
ESTEC TOS-ETL
P.O. Box 299
NL-2200 AG Noordwijk
The Netherlands
Tel: +31-71-565-5870
Fax: +31-71-565-4596
e-mail: aderderi@estec.esa.nl
Mr. David Raboso
ESTEC TOS-ETP
P.O. Box 299
NL-2200 AG Noordwijk
The Netherlands
Tel: +31-71-565-5648
Fax: +31-71-565-4596
e-mail: draboso@estec.esa.nl
For local arrangements
ESTEC Conference Bureau
P.O. Box 299
NL-2200 AG Noordwijk
The Netherlands
Tel: +31-71-565-5005
Fax: +31-71-565-5658
e-mail: confburo@estec.esa.nl

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