Zobrazeno 1 - 10
of 23
pro vyhledávání: '"A. B. Numan"'
Publikováno v:
International Journal of Antennas and Propagation, Vol 2013 (2013)
Directional ultrawideband (UWB) antennas are popular in wireless signal-tracking and body-area networks. This paper presents a stacked microstrip antenna with an ultrawide impedance bandwidth of 114%, implemented by introducing defects on the radiati
Externí odkaz:
https://doaj.org/article/d2244fba35b24155aacb964bbdf625b2
Publikováno v:
IEEE Access, Vol 8, Pp 221127-221137 (2020)
This work presents novel techniques to realize a retrodirective millimeter wave antenna array with wide field of view. High gain arrays in phase conjugate configuration are used in combination with orthogonal polarization states and a novel pulse mod
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::addd7ec4c216c2efa398fe9541edfc54
https://doi.org/10.1109/access.2020.3043525
https://doi.org/10.1109/access.2020.3043525
Publikováno v:
IEEE Transactions on Antennas and Propagation. 66:5614-5619
A simple and low-cost single substrate layer Luneburg lens-based beamforming network (BFN) operating in $W$ -band is proposed. A multibeam antenna is then realized using the novel BFN and fabricated using a low-cost printed circuit board process. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::131331aedde992059b6ac7a07946d55f
https://doi.org/10.1109/tap.2018.2860119
https://doi.org/10.1109/tap.2018.2860119
Publikováno v:
Radio Science. 53:739-748
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3356ee92b9aecae264c3a25481be69b3
https://doi.org/10.1029/2017rs006495
https://doi.org/10.1029/2017rs006495
Publikováno v:
IEEE Microwave and Wireless Components Letters. 28:221-223
A novel concept of a simple single-pole single-throw switch implementation for a substrate-integrated waveguide is presented in this letter. The switch design is an adaptation from the antenna theory where a resonant slot on a rectangular waveguide,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::69e06495b35c72335f55d20dd43d2527
https://doi.org/10.1109/lmwc.2018.2804259
https://doi.org/10.1109/lmwc.2018.2804259
Publikováno v:
2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting.
A novel low-cost printed circuit board Luneburg lens realization in W-band is proposed. This lens is fabricated by using a low-cost printed circuit board process. Concentric circles of holes in a substrate, covered on both sides with a metal sheet, r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f1d4a105ef29738ecb1ac24cf56450f5
https://doi.org/10.1109/apusncursinrsm.2018.8608768
https://doi.org/10.1109/apusncursinrsm.2018.8608768
Publikováno v:
2017 XXXIInd General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS).
This article presents compact millimeter-wave slot antenna arrays that are suitable for polarization diversity applications. The radiating element consists of a cavity that is excited by a coupling slot on a substrate integrated waveguide (SIW) line.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::da54302e3b4dec209df12c7e9706a750
https://doi.org/10.23919/ursigass.2017.8105003
https://doi.org/10.23919/ursigass.2017.8105003
Akademický článek
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Autor:
Mohammad S. Sharawi, Ahmad B. Numan
Publikováno v:
IEEE Antennas and Propagation Magazine. 55:202-211
In this paper, a step-by-step procedure is devised for extracting the material parameters to facilitate and simplify the design procedure of metamaterial structures using commercial software packages. A parameter-retrieval method using the S paramete
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c71bddf0fab65146635aad41a868470
https://doi.org/10.1109/map.2013.6735515
https://doi.org/10.1109/map.2013.6735515
Publikováno v:
IEEE Transactions on Antennas and Propagation. 61:4265-4274
A 2 × 2 (four-element) multiple-input multiple-output (MIMO) patch antenna system is designed and fabricated for a 2.45-GHz ISM band operation. It uses complementary split-ring resonator (CSRR) loading on its ground plane for antenna miniaturization
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::939c4bc6bbe1a5990625e7f44e674431
https://doi.org/10.1109/tap.2013.2263214
https://doi.org/10.1109/tap.2013.2263214