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01006003 Mobile Communications
01006004 Narrow Band Technologies
03007 Sound Engineering/Technology
01001003 Radio and TV broadcasting and other related equipment
02007005 Communications/networking
Joint venture agreement
Research cooperation agreement
Technical cooperation agreement
Expertise in Surface Acoustic Wave (SAW) filters design for mobile and other applications
POD Reference: Profile Type: Date: |
RTTN 12739 TO 29.03.2018 |
Annotation
A Russian SME from Moscow, specialized in research, development and manufacture of radiotechnical equipment, offers services in Surface Acoustic Wave (SAW) filters design, testing and manufacture. The services are based on efficient design and simulation tools (a CAD system with original models of acoustic-electronic transducers), as well as testing labs and highly experienced staff. Partners are sought for technical and R&D co-operation and/or commercial agreement with technical assistance.Description
Protection against radio noise is a crucial factor for reliable work of mobile telecommunication equipment. Therefore, any broadcast equipment applies radio-frequency filters. Most widely adopted for telecom equipment in RF-range of 20 - 3500 МHz are piezoelectric filters on surface acoustic waves (SAW). Their advantages are small size, high stability of parameters; they can be manufactured with a group technology, thus ensuring a high repeatability and a low cost. The main difficulty in development of filters for telecom equipment is finding a compromise between three parameters: damping, selectivity and bandwidth. Input filters of receiver-transmitter equipment should have the damping under 1 … 6 dB, i.e. belong to the «low-loss filters» class. The bandwidth should vary over a wide range for various applications, and selectivity is desired to be as great as possible. Yet, there is only a narrow range of optimum parameter combinations for each type of SAW-filters. A Russian company with a strong RTD capacity, CIS leader in SAW filters development and manufacture, has developed an original computer-aided system for designing low-loss SAW filters (from 0,8 dB) in a wide spectrum of pass bands (0,04% -12 %). The system is based on a modified P-matrix model that links input and output waves in an acoustic-electronic component with use of transmission, reflection and transformation factors. The basic team of company experts has 40 years of experience in the development and batch production of SAW filters for civil and defence applications. The company’s Quality Assurance System meets ISO 9001-2001. Before being delivered to customers, the filters are submitted to acceptation tests, qualification tests, periodical tests, hermiticity tests and other trials, assuring their high quality. The company offers SAW filters development and production services to SAW filter developers and manufacturers. Filters to be manufactured can be both from the company own catalogue and to the customer specification, with the following ranges of parameters: • Nominal frequency f nom: 20… 3330 MHz; • Bandwidth at (-1…-3 dB) : 0,1% … 80% of f nom ; • Out-of-band signal suppression: up to 60 dB (from f nom) in rejection bands; • Minimum insertion attenuation: from 1 dB; • Maximum amplitude ripple in the pass band: from 0,1 dB; • Group delay ripple in the pass band: from 5 ns. Pilot samples can be delivered in a shortest time; serial deliveries are also possible. Design implementation – SMD, SIP, DIP packages of various standard sizes. A joint application to international RTD programmes can be an option.Advantages and Innovations
The implemented model/CAD system allows design of 4 filter configurations: - Longitudinally coupled resonator filters, - SAW resonator filters with reversing multistrip couplers, - SAW filters with U-shaped multistrip couplers, and - Transversely coupled resonator filters. For calculation of transversely coupled resonator filters, the acoustic waveguide theory is applied additionally, to describe the non-uniform distribution of the wave front. This combination of engineering decisions is implemented in the framework of Mathcad system. The developed CAD system allows a 25% reduction in calculation time and a 30% reduction in the number of experimental iterations, and improves significantly the agreement between calculated and experimental values.Stage of Development
Already on the marketTechnology Keywords
01002005 High Frequency Technology, Microwaves01006003 Mobile Communications
01006004 Narrow Band Technologies
03007 Sound Engineering/Technology
Market Keywords
01001001 Radio and TV broadcasting stations01001003 Radio and TV broadcasting and other related equipment
02007005 Communications/networking
IPR status
Secret Know-how
Cooperation
Type of Partnership Considered
Commercial agreement with technical assistanceJoint venture agreement
Research cooperation agreement
Technical cooperation agreement
Type of Partner Sought
IndustryPartner Area
Production of TV and radio equipment, mobile communication equipment; GPS/GLONASS equipmentRole of Partner Sought
Utilization of the offered SAW filter design and simulation know-how in electronic product development projects
Author
Type and Size of Client
Industry SME 11-49Region
Moscow
Center
Center
Russian Technology Transfer Network, Coordination TeamRegion
Kaluga OblastWeb site
www.rttn.ru
Express interest
Express interest