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US 2013/0278473 A1Published application
Efficient active multi-drive radiator
AssigneeCalifornia Institute of Technology
InventorsSteven BOWERS, Seyed Ali Hajimiri
Life of this patent
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Abstract
An integrated Multi-Port Driven (MPD) antenna that can be driven at many points with different signals. An integrated MPD radiating source utilizing an 8-phase ring oscillator and eight power amplifiers to drive the MPD antenna at 161 GHz with a total radiated power of −2 dBm and a single element EIRP of 4.6 dBm has been demonstrated in silicon with single lobe well behaved radiation patterns closely matching simulation.
Claims19
A multi-port driven antenna, comprising:
- an antenna structure having a length L, said antenna structure comprising a conductor and configured to radiate electromagnetic radiation, said radiator structure having at least one ground contact point and a plurality S of input ports, where S is a positive integer greater than or equal to 2, each of said plurality S of input ports having a respective electrical connection to said antenna at a respective selected location along the antenna length L;
- and
- a respective signal input terminal of each of said plurality S of input ports, each signal input terminal configured to receive a respective input signal having a predetermined phase relationship with respect to another input signal applied to an adjacent signal input terminal, said predetermined phase relationship dependent on said location of said respective electrical connection to said antenna, said respective signal input terminal configured to apply said received respective signal to said antenna structure at said respective selected location of said input port.
A method of generating electromagnetic radiation, comprising the steps of:
- providing an antenna comprising:
- an antenna structure having a length L, said antenna structure comprising a conductor and configured to radiate electromagnetic radiation, said radiator structure having at least one ground contact point and a plurality S of input ports, where S is a positive integer greater than or equal to 2, each of said plurality S of input ports having a respective electrical connection to said antenna at a respective selected location along the antenna length L;
- and
- a respective signal input terminal of each of said plurality S of input ports, each signal input terminal configured to receive a respective input signal having a predetermined phase relationship with respect to another input signal applied an adjacent signal input terminal, said predetermined phase relationship dependent on said location of said respective electrical connection to said antenna, said respective signal input terminal configured to apply said received respective signal to said antenna structure at said respective selected location of said input port;
- applying each of a plurality S of input signals each having a frequency w to a respective signal input terminal of each of said plurality S of input ports;
- and
- observing an electromagnetic radiation output signal at a frequency w.
4 more elements
Dependencies are inferred from the claim text.