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A Novel All-Digital Multichannel Multimode RF Transmitter Using Delta-Sigma Modulation

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4 Author(s)
Silva, N.V. ; Dept. de Electron., Univ. de Aveiro, Aveiro, Portugal ; Oliveira, A.S.R. ; Gustavsson, U. ; Carvalho, N.B.

In this letter, we present a new all-digital multichannel multimode transmitter architecture. The main novelty is the development of an agile radio transmitter where the digital up-conversion to RF operating in the gigahertz frequency range and the multichannel transmission capacity are embedded into a single field-programmable gate array device. Its high flexibility and fast switching of the carriers' frequencies make this transmitter interesting for cognitive radio-based applications.

Published in:

Microwave and Wireless Components Letters, IEEE  (Volume:22 ,  Issue: 3 )