Results 11 to 20 of about 236,478 (267)
Quad-Port Circularly Polarized MIMO Antenna with Wide Axial Ratio [PDF]
Sensors, 2022 This article studies a quad-port multi-input-multi-output (MIMO) circularly polarized antenna with good isolation properties. Using characteristic mode analysis (CMA), the first six distinct modes of the asymmetric square slot with an inverted L-strip ...
Vamshi Kollipara, Samineni Peddakrishna
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Detecting Axial Ratio of Microwave Field with High Resolution Using NV Centers in Diamond [PDF]
Sensors, 2019 Polarization property characterization of the microwave (MW) field with high speed and resolution is vitally beneficial as the circularly-polarized MW field plays an important role in the development of quantum technologies and satellite communication ...
Cui-Hong Li +5 more
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Design of 24–40 GHz Ultra-Wideband Circularly Polarized Monopole Antenna with a Defected Ground Plane [PDF]
Journal of Electromagnetic Engineering and Science, 2022 A new design method for an ultra-wideband circularly polarized microstrip-fed monopole antenna with a ground defect is proposed in this paper. To achieve ultra-wideband circular polarization performance, a parallelogram-shaped ground defect is employed ...
Ju Seong Park +2 more
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Sensors, 2022 In this article, a rectangular dielectric resonator antenna (RDRA) with circularly polarized (CP) response is presented for 5G NR (New Radio) Sub-6 GHz band applications.
Usman Illahi +10 more
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A New Compact Dual Band GPS Patch Antenna Design Based on Minkowski-Like Pre-Fractal Geometry [PDF]
Engineering and Technology Journal, 2009 A low profile compact microstrip antenna for GPS (L1/L2) application has beenpresented in this paper. The proposed antenna design is based on the 3rd iterationMinkowski-like pre-fractal geometry.
Mohammed Fadhil Hasan
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IET Microwaves, Antennas & Propagation, 2022 In this study, a novel broadband circularly polarised waveguide slot array antenna with a wide axial ratio bandwidth is designed. The circular polariser is excited by the waveguide radiation linear polarised antenna, whose end is bent by 90° and ...
Hai Wang +6 more
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Average Axial Ratio of Stiff Chains [PDF]
Polymer Journal, 1975 The shape of stiff chains in dilute solution was considered. An average axial ratio was defined to describe the shape of the stiff chains and calculated using Tagami’s model for stiff chains. It was found that the average axial ratio is approximately proportional to λL in the stiff-chain region, where 1/2λ is the persistence length and L is the contour
Hoshikawa, Hiroshi +2 more
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A Compact Circularly Polarized Multiband Microstrip Patch Antenna with Defective Ground Structure [PDF]
International Journal of Electronics and Telecommunications, 2019 In this paper, a novel double-layer multiband circularly polarized microstrip patch antenna is proposed. The design employs the concept of slotted patch fed with proximity coupled feed having defected ground plane (DGS).
Ashish Kumar Singh +3 more
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Applied Sciences, 2021 In this article, a high gain and compact 4 × 4 circularly polarized microstrip patch antenna array is reported for the data transmission of the next-generation small satellite.
Manzoor Elahi +4 more
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Sensors, 2022 In this paper, single-element and MIMO microstrip antenna with two pairs of unequal slits is proposed as a circularly polarized antenna with negligible back radiation for 5G mid-band handsets.
Falih M. Alnahwi +3 more
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