Results 31 to 40 of about 567,106 (189)
IET Microwaves, Antennas & Propagation, 2023 This article presents a wideband circularly polarised (CP) antenna array using a miniaturised double box branch‐line coupler. This was achieved by creating a slow wave structure by introducing open‐circuit stubs on the inside arms of the branch‐line ...
Bal S. Virdee, Tohid Aribi, Tohid Sedghi
doaj +1 more source
Techniques to increase gain and impedance bandwidth of a cross-aperture coupled patch antenna
, 2003 A broadband high-gain single-feed cross-aperture coupled patch antenna is presented in this paper. The measured results confirm that the antenna is capable of a 14.4% impedance bandwidth (VSWR ≤ 2), 3% of 3-dB axial-ratio bandwidth, and 17.4% of gain (>8
Mohan, AS +5 more
core +2 more sources
The Design and Simulation of High Impedance Surface in Airborne Telemetry Antenna
ITM Web of Conferences, 2017 Aiming to the problems that excessive reduction of airborne telemetry antenna’s size will cause a sharp deterioration of the antenna’s bandwidth and gain, this paper proposed that using a high-impedance surface in the airborne telemetry antenna.
Zhang Yan-Lian, Gong Hai-Bo, Xu Qian
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A Wideband Circularly Polarized Slot Antenna Backed by a Frequency Selective Surface [PDF]
Journal of the Korean Institute of Electromagnetic Engineering and Science, 2019 This paper presents the design of a coplanar waveguide (CPW)-fed single-layer wideband circularly polarized (CP) planar slot antenna backed by a frequency selective surface (FSS).
Puneeth Kumar Tharehalli Rajanna +2 more
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Broadband HMSIW antenna using a demi hexagonal ring slot for X-band application
Jurnal Ilmiah SINERGIMicrostrip antennas offer several advantages, including small size, easy fabrication, controllable polarity and radiation patterns, and easy integration with other components.
Dian Widi Astuti +4 more
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Effect of Feed Substrate Thickness on the Bandwidth and Radiation Characteristics of an Aperture-Coupled Microstrip Antenna with a High Permittivity Feed Substrate [PDF]
Journal of the Korean Institute of Electromagnetic Engineering and Science, 2018 The impedance bandwidth and radiation characteristics of an aperture-coupled microstrip line-fed patch antenna (ACMPA) with a high permittivity (ɛr = 10) feed substrate suitable for integration with a monolithic microwave integrated circuit (MMIC) are ...
Jae-Hyun Kim, Boo-Gyoun Kim
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Journal of Microwaves, Optoelectronics and Electromagnetic Applications, 2022 The presented model for wideband circularly polarized microstrip antenna is an improved version of the previous models which is widely applicable to satellite, microwave relay and radar.
Shilpee Patil +5 more
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International Journal of Antennas and Propagation, 2016 A broadband dual circularly polarized magnetoelectric dipole antenna (MEDA) fed by a miniaturized six-branch hybrid coupler (SBHC) is presented in this paper.
Changhong Zhang +3 more
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Planar Inverted-E (PIE) Antenna for a Wide Impedance Bandwidth
IEICE Transactions on Communications, 2010 A planar inverted-E (PIE) antenna that can achieve a wide impedance bandwidth is proposed. The antenna is realized by inserting a branch capacitance between the feed line and the shorting pin of a conventional planar inverted-F antenna (PIFA). Such a modification significantly enhanced the impedance bandwidth while maintaining the antenna size.
JEON, Sinhyung +2 more
openaire +1 more source
The Impedance of a Transmission Line Transformer
, 2022 Transmission-line transformers are useful circuits for impedance-matching applications due to their broad operating bandwidth. An equivalent model for transmission-line transformers supports accurate calculation of input impedance through a distributed ...
Enzo Carpentieri (14195432)
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