Title :
Analysis and design of a continuous-wave terahertz photoconductive photomixer array source
Author :
Saeedkia, Daryoosh ; Mansour, Raafat R. ; Safavi-Naeini, Safieddin
Author_Institution :
Electr. & Comput. Eng. Dept., Univ. of Waterloo, Ont., Canada
Abstract :
An array of photoconductive photomixer/antenna elements as a continuous-wave terahertz source is proposed, and its radiation characteristic is studied. Employing photomixer/antenna elements in an array configuration increases available terahertz power, while each of the array elements consumes optical power less than its maximum sustainable power. A few microwatt terahertz power is achievable from a typical array structure. It is shown that the radiated beam can be steered by changing the angle between the two exciting laser beams.
Keywords :
antenna arrays; optoelectronic devices; photoconducting devices; power consumption; submillimetre wave antennas; submillimetre wave mixers; antenna array; antenna element; continuous-wave terahertz source; optical power consumption; optoelectronic; photoconductive photomixer; radiation characteristics; Antenna arrays; Biomedical optical imaging; Frequency; Laser beams; Laser modes; Optical arrays; Optical mixing; Optical receivers; Optical variables control; Photoconductivity; Continuous-wave terahertz sources; photomixers; terahertz antenna array; terahertz optoelectronics; ultrafast photoconductors;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2005.859909
