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- Title
Planar MIMO Antenna Model for Spectrum Sensing Applications.
- Authors
Al Ka'bi, Amin
- Abstract
The process of spectrum sensing in cognitive radio (CR) networks plays a critical role as it identifies frequencies that are not utilized, hence saving on bandwidth and energy. For spectrum sensing in CR systems, the design of multi-input multi-output (MIMO) antenna system for a small super-wideband (SWB) diversity antenna system with three band-notches is suggested. Four identical semi-elliptical monopole antennas, positioned perpendicularly with feed lines tapered CWG type, make up a MIMO antenna. Every antenna for the SWB characteristics has a cross-slot carved on the bottom that is comparable to the radiator. The antenna radiator features two connected slits that produce the image of the split ring resonator and a staircase-like slit to ensure that there is no negative impact on SWB. The antenna has a bandwidth ratio of 36:1 and resonates between 1.2 and 43 GHz. Isolation of up to 18dB and envelop correlation coefficient less than 0.01 is implemented within a resonating band for the MIMO antenna that have orthogonally placed antenna elements. At 3.5 GHz, 5.5 GHz, and 8.5 GHz, there is a drop in gain for a maximum gain of 4 dBi offered by the antenna. A small antenna comprising of 52 mm × 52 mm MIMO has been proposed for this research. The proposed antenna provides higher bandwidth ratio, which makes it simple to integrate into modern RF equipment. This SWB, MIMO antenna surpasses those previously discussed in the literature possessing multiple notched bands. Likewise, the three notches of small super-wideband (SWB) are obtained and implemented without incorporating any filter, thus, the antenna design is quite feasible.
- Subjects
MONOPOLE antennas; ANTENNA design; ANTENNAS (Electronics); NOTCH filters; PLANAR antennas; COGNITIVE radio; RESONATORS
- Publication
Wireless Personal Communications, 2024, Vol 135, Issue 2, p919
- ISSN
0929-6212
- Publication type
Article
- DOI
10.1007/s11277-024-11091-6