Grating Lobe Reduction in Scanning Phased Array Antennas With Large Element Spacing
نویسندگان
چکیده
منابع مشابه
Phased array element shapes for suppressing grating lobes.
Most techniques for suppressing grating lobes in phased arrays while relaxing the interelement spacing requirement involve redistributing array elements in sparse aperiodic patterns, or varying the transmit-receive beam patterns. An alternative is presented which uses oversized array elements to eliminate grating lobes as a direct consequence of the element shape. It is shown that by using care...
متن کاملa simple side lobe reduction method in linear phased array antennas with uniform and non-uniform weighting using the slc idea
antenna structures with low side lobe levels are normally the main goal during antenna design. in this paper, a new method for reduction of radiation pattern side lobe level in phased array antenna with uniform and non-uniform weighting is presented. in this method, by changing the array elements weight or adding several elements, such as slc technique, the pattern with low side lobe level can ...
متن کاملOptical beam forming for phased-array antennas
communications spectrum from copper cables, optical fibres, microwaves, radio and electromagnetic compatibility. Our research concentrates on optical signal processing and networks, mobile communications, microwave techniques and radiation from ICs and PCBs [1]. A considerable (and particularly interesting) part of it is related to optical beam forming for phased array antennas, using optical r...
متن کاملPhased array antennas for mobile communications
Mobile communications demands present new challenges for transmission. Traditionally, antennas used at base stations to communicate with mobile units within an area are omni-directional. In order to allow a higher density of participants within the area, a “pencil” beam is used. The beam tracks and follows the movement of the mobile unit. This results in an additional advantage: the fading effe...
متن کاملProgrammable Dispersion Matrix Using Bragg Fibre Grating for Optically Controlled Phased Array Antennas
( 3 ) where c is the velocity of light in free space, s = 7cr2 (area of the original circle) and (s Ax) is the overlapping area of the two circles. The theoretical resonant frequencies for ports 1 and 2 are 2.609 and 3.129GHz, respectively. The experiment has been repeated with substrates of different thickness and dielectric constant. The agreement between theoretical and experimental resonanc...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEEE Transactions on Antennas and Propagation
سال: 2018
ISSN: 0018-926X,1558-2221
DOI: 10.1109/tap.2018.2874717