Multi-Protocol, Multiband PA Development - NMI · Multi-Protocol, Multiband PA Development Raj...
Transcript of Multi-Protocol, Multiband PA Development - NMI · Multi-Protocol, Multiband PA Development Raj...
• Registered in England & Wales
• Based in Leeds, with easy access
to Motorways, Railway & Airport
• Design & Manufacture in the UK:
No ITAR Issues
• Accreditation to ISO 9001:2008
• Highly experienced Engineering
and Management team.
Company Background
Windmill House opened by
Lord Green in June 2013
• 3000+ sq ft modern facility with options for
further 3000 sq ft.
• Current headcount is 15
• In house Services • Design and Development
• PCB design and layout
• Board Assembly and Integration
• Test and Alignment
• Outsourced Services • CNC Machining (local and offshore)
• PCB Manufacture
• PCB Assembly (SMT)
SARAS Facility
• Products and Markets
• Customers
• Acquire Knowledge and Expertise
• How to finance the development?
HPA challenges …
Multi Protocol PA Requirements
• Up to 80W (GSM) and 35W (UMTS, LTE) output capability
• Single unit with up to 3 bands
• Capable of handling GSM, UMTS and LTE
• Meets 3GPP linearity specifications etc
• Good efficiency
• Different variants with same footprint
• Only one band used at a time!
Design Goals
• Handle PAR up to ~9dB
• Use Doherty architecture to achieve good
efficiency
• Implement Linearisation at the outset
• Use commonality to minimise hardware
Block Schematic
RFIN
RF IN DIG ATT
CONTROL
CONTROL
SPDT
RFOUT
RFFB
DIG ATT
DIG ATT
RFIN RFOUT
RFFB
SPDT
SPDT
RFOUT
RFOUT
RFOUT
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SARAS Product Range
• Amplifier Products
• High Power and Linear PA’s
• Custom Designs including Broadband and Pulsed
• Cellular PA: GSM, UMTS, LTE, Multi-Mode
• Filter Products
• Filters
• Multiplexers: Diplexers, Triplexers…..
• Switched Filter Banks
• Passive Products
• Equaliser (Linear & Parabolic)
• Splitters and Combiners
• Integrated Products
• Custom Designed Assemblies
Filter Products
• VHF, UHF to 3GHz
• Surface Mount or Connectorised
Lumped Element and Ceramic Filters
Filter Products
• High Q, Low Loss
• High Power
• Rugged
• High Stopband Attenuation
Machined Combline Filters
Filter Products
• Low Loss (<1dB)
• High Rejection (60dB)
• 2 to 40 GHz
• Repeatable (Printed Technology)
• High Reliability
Suspended Substrate Filters