Sub-THz beam-forming using near-field coupling of Distributed Active Radiator arrays

Author

Sengupta, Kaushik ; Hajimiri, Ali

Author_Institution

Dept. of Electr. Eng., California Inst. of Technol., Pasadena, CA, USA

fYear

2011

fDate

5-7 June 2011

Firstpage

1

Lastpage

4

Abstract

The paper demonstrates Distributed Active Radiator (DAR) arrays as a novel way of beam-forming at sub-THz frequencies in CMOS. Near-field coupling is shown to be a scalable method for mutually locking multiple DARs to beam-form and generate high EIRP. As proofs of concept, 2 × 1 and 2 × 2 arrays of DARs, mutually synchronized through near-field coupling, are implemented in 65 nm bulk CMOS. The paper also shows beam-forming near 200 GHz for the 2 × 2 array with broadside EIRP of -1.9 dBm, total radiated power of 54 μW and beam-scanning range for approximately ± 30° in each of the two orthogonal directions in 2 D space.

Keywords

CMOS integrated circuits; antenna arrays; array signal processing; submillimetre wave antennas; 2D space; EIRP; beam-scanning range; bulk CMOS; distributed active radiator arrays; near-field coupling; orthogonal directions; power 54 muW; size 65 nm; sub-terehertz beamforming; submillimetre wave antennas; Antennas; CMOS integrated circuits; Couplings; Harmonic analysis; Oscillators; Power harmonic filters; Silicon; CMOS; VCO; beam-steering; doubler; near-field; oscillator; radiation; sub-millimeter wave; terahertz;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio Frequency Integrated Circuits Symposium (RFIC), 2011 IEEE

Conference_Location

Baltimore, MD

ISSN

1529-2517

Print_ISBN

978-1-4244-8293-1

Electronic_ISBN

1529-2517

Type

conf

DOI

10.1109/RFIC.2011.5940677

Filename

5940677