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Transmitter Architectures Based on Near-Field Direct Antenna Modulation

Babakhani, Aydin and Rutledge, David B. and Hajimiri, Ali (2008) Transmitter Architectures Based on Near-Field Direct Antenna Modulation. IEEE Journal of Solid-State Circuits, 43 (12). pp. 2674-2692. ISSN 0018-9200. doi:10.1109/JSSC.2008.2004864.

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A near-field direct antenna modulation (NFDAM) technique is introduced, where the radiated far-field signal is modulated by time-varying changes in the antenna near-field electromagnetic (EM) boundary conditions. This enables the transmitter to send data in a direction-dependent fashion producing a secure communication link. Near-field direct antenna modulation (NFDAM) can be performed by using either switches or varactors. Two fully-integrated proof-of-concept NFDAM transmitters operating at 60 GHz using switches and varactors are demonstrated in silicon proving the feasibility of this approach.

Item Type:Article
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Hajimiri, Ali0000-0001-6736-8019
Additional Information:© Copyright 2008 IEEE. Reprinted with permission. Manuscript received April 15, 2008; revised June 25, 2008. Current version published December 10, 2008. The authors thank Y.-J. Wang for assistance in designing the digital blocks. They also appreciate the support of the Lee Center for Advanced Networking, DARPA’s trusted foundry program, and valuable help from J. Bardin, E. Keehr, and J. Yoo. The technical support for CAD tools from Cadence Design Systems, Agilent Technologies, Zeland Software Inc., and Ansoft Corporation is also appreciated.
Funding AgencyGrant Number
Lee Center for Advanced Networking ,CaltechUNSPECIFIED
Defense Advanced Research Planning AgencyUNSPECIFIED
Subject Keywords:BiCMOS; CMOS switch; dielectric lens; dipole; integrated antennas; integrated circuits; modulation; phased-array; reflector; secure communication; silicon germanium; surface-wave; transmitter; varactor
Issue or Number:12
Record Number:CaltechAUTHORS:BABieeejssc08
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:12930
Deposited By: Archive Administrator
Deposited On:09 Jan 2009 21:51
Last Modified:08 Nov 2021 22:34

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