Transmitter Architectures Based on Near-Field Direct Antenna Modulation

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...

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Bibliographic Details
Published in:IEEE journal of solid-state circuits 2008-12, Vol.43 (12), p.2674-2692
Main Authors: Babakhani, A., Rutledge, D.B., Hajimiri, A.
Format: Article
Language:English
Subjects:
Applied sciences
BiCMOS
Circuit properties
CMOS switch
Communication switching
Design. Technologies. Operation analysis. Testing
dielectric lens
Diodes
dipole
Dipole antennas
Electric, optical and optoelectronic circuits
Electronic circuits
Electronics
Exact sciences and technology
integrated antennas
Integrated circuits
modulation
phased-array
Radio frequency
Radio transmitters
Receivers
Receiving antennas
reflector
secure communication
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
silicon Germanium
surface-wave
Switches
Switching, multiplexing, switched capacity circuits
Transceivers
transmitter
Transmitting antennas
varactor
Varactors
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Description
Summary: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.
ISSN:0018-9200
1558-173X
DOI:10.1109/JSSC.2008.2004864