document title / titre du document TRP W ORK PLAN ... - emits - ESA

TRP Work Plan 2005-2007
Description of Activities
TEC-SB/7935/dc
12/Feb/09
5.6.2 - On-Board Equipment Technologies (Source: TRP 2000-2003)
TRP Reference:
03/ETM-001
SAW Filter Development (original activity: SAW resonator technology for L and S-band
Title:
space applications)
Surface Accoustic Wave (SAW) quartz resonators are often used in Voltage Controlled Oscillator (VCO) with demanding
phase noise requirements. However, the use of SAW resonator based VCOs (SAWR-VCO) has so far mainly been limited to
frequencies below 1 GHz for very high Q applications. The use of SAW resonators at higher frequencies and on other
materials has been demonstrated in the MATOPS program for the use in low-loss impedance element filters (IEF). For both
SAW-IEF and SAWR-VCO the main goal in design of the resonators is to achieve high resonator Q-values.
The proposed activity aims at investigating and improving SAW resonator technology for use in VCOs in the 1-2.5 GHz range.
There are several space applications of low-phase noise VCOs in navigation and communication systems operating in this
frequency range. The results will also be applicable for narrowband low-loss filters and SAW notch filters.
In particular, the study will focus on:
• Analysis of material and design limitations of high-frequency, high-Q quartz resonators; other materials, such as Langasite
(with lower intrinsic material loss), or other low-loss wave modes (STW).
• Evaluation of high-Q resonators design aspects.
• Breadboarding (design and development) of a SAW resonator, including manufacturing and testing of critical components
and technologies; evaluation of specific manufacturing processes issues.
• Evaluation of possible applications of a SAW resonator in VCO.
This activity is proposed as a special measure to Norway.
Deliverables:
Current TRL: Target TRL: Application Need/Date:
Application/Mission:
Contract Duration:
SW Clause : - Dossier0 Ref.:
Consistency with Harmonisation
Roadmap and Conclusions:
TRP Reference:
Title:
SAW Filter Development (original activity: SAW resonator technology for L and S-band
space applications)
Deliverables:
Current TRL: Target TRL: Application Need/Date:
Application/Mission:
Contract Duration:
SW Clause : - Dossier0 Ref.:
Consistency with Harmonisation
Roadmap and Conclusions:
Page 116 of 227