Abstract
Phased-Arrays are increasingly used, and requireSilicon implementations to result in affordable multi-beamsystems. In this paper, CMOS implementations of two novelanalogue beamforming multi-channel receivers will be presented.A narrow-band highly linear system exploiting switches andcapacitors in advanced CMOS is presented, implementing a fully passive switched capacitor vector modulator exploiting a zero-IF I/Q mixer. This technique is not applicable to very wideband phased-array receivers. These systems require true-time delay beamforming, which is implemented in the second CMOS implementation. An innovative gm-RC implementation of a truetimedelay cell is exploited in a four-channel beamformingreceiver with more than 1.5 GHz bandwidth, in a standard 0.13 urn CMOS process. Professional phased-arrays can often not live with the dynamic range limitations imposed by theseimplementations. To that end a SiGe implementation of anintegrated receiver was realized targeting a digital beamforming phased-array. Dynamic range and flexibility of use were the main driving factors. Alltogether, these results show large progress with respect to the feasibility of Silicon-based phased-array frontendimplementation for commercial as well as professionalphased-arrays.
Original language | English |
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Title of host publication | 2012 IEEE MTT-S International Microwave Symposium |
Subtitle of host publication | MTT 2012, Montreal, Quebec, Canada, 17-22 June 2012 |
Place of Publication | Piscataway, NJ |
Publisher | IEEE |
Pages | 1-3 |
Number of pages | 3 |
ISBN (Electronic) | 978-1-4673-6177-4, 978-1-4673-1086-4, 978-1-4673-1088-8 |
ISBN (Print) | 978-1-4673-1085-7, 978-1-4673-1087-1 |
DOIs | |
Publication status | Published - 19 Jun 2012 |
Event | International Microwave Symposium 2012 - Montreal, Canada Duration: 17 Jun 2012 → 22 Jun 2012 |
Conference
Conference | International Microwave Symposium 2012 |
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Abbreviated title | IMS 2012 |
Country/Territory | Canada |
City | Montreal |
Period | 17/06/12 → 22/06/12 |