Analysis of a Weaver, Hartley and Saw- Filter Based, Image Reject Architectures for Radio Receiver Design
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Trans Tech Publications
Abstract
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This paper presents an analysis of the three popular image reject architectures used in
radio receiver design. The SAW-filter based image reject architecture is the simplest to implement
and has the lowest power consumption while the weaver is the most complex with the highest
power consumption. The Hartley architecture which utilizes half the number of mixers used in the
weaver architecture does not consume as much as the weaver architecture but is not as efficient due
to the use of the 900 phase shifter. The three architectures are optimized for various design
specifications. The receiver design with power constraints is better realized using the SAW filter
while the receiver with portability as its highest priority is better realized using the weaver
architecture. The architecture implemented for any particular radio design is determined by the
receiver specification with the highest priority
Keywords
TK Electrical engineering. Electronics Nuclear engineering