Results 11 to 20 of about 750,689 (337)
EBG-backed ultrawideband circularly polarized Archimedean spiral antenna scheme for IoT applications [PDF]
Scientific ReportsThis research proposes a low-profile ultrawideband circularly polarized Archimedean spiral antenna with an electromagnetic band gap (EBG)-backed structure. The proposed antenna scheme consists of an upper-layer spiral radiator, a microstrip tapered balun,
Bancha Luadang +6 more
doaj +2 more sources
A Twin Spiral Planar Antenna for UWB Medical Radars [PDF]
International Journal of Antennas and Propagation, 2013 A planar-spiral antenna to be used in an ultrawideband (UWB) radar system for heart activity monitoring is presented. The antenna, named “twin,” is constituted by two spiral dipoles in a compact structure.
Giuseppe A. Zito +2 more
doaj +4 more sources
A Broadband Planar Spiral Antenna Design for Electromagnetic Signal Monitoring
IEEE Access, 2020 In order to meet the wide-band full-space radio monitoring task, the design of a circular-polarized planar dual-arm composite spiral antenna is presented in this paper.
Daifu Chen, Hongxin Zhang, Jun Xu
doaj +2 more sources
A Novel Square-Spiral Strip Antenna [PDF]
2007 2nd International ITG Conference on Antennas, 2007 A square-spiral strip antenna is designed considering the procedure used to obtain log-periodic antennas. Simulation results of the new design are compared with those of the well known and widely used Archimedean spiral antenna in terms of the frequency dependency. The effect of dielectric substrate used to support the antennas is also investigated.
Saynak, Uğur, Kuştepeli, Alp
core +5 more sources
An integrated spiral antenna system for UWB [PDF]
2005 European Microwave Conference, 2005 As wireless communication applications require more and more bandwidth, the demand for wideband antennas increases as well. For instance, the ultra wideband radio (UWB) utilizes the frequency band of 3.1-10.6 GHz. The spiral antenna has a higher spectral efficiency than other planar antennas like the patch antenna.
M. Karlsson, null Shaofang Gong
openaire +2 more sources
Spiral Antenna Design and Analysis As a Tool to Measure Partial Discharge in High Voltage Equipment [PDF]
E3S Web of Conferences, 2021 The high-voltage equipment often experiences disturbances caused by the age of the equipment, installation errors, partial discharge disturbances. Of these kinds of disturbances, partial discharge is one of the most common disturbances in high-voltage ...
Laksono Deni Tri +2 more
doaj +1 more source
A Reconfigurable Spiral Antenna for Adaptive MIMO Systems
EURASIP Journal on Wireless Communications and Networking, 2005 We present a reconfigurable spiral antenna for use in adaptive MIMO systems. The antenna is capable of changing the sense of polarization of the radiated field. It is fabricated by using an RF-MEMS technology compatible with microwave laminate substrates
Cetiner Bedri A. +3 more
doaj +3 more sources
Xi'an Gongcheng Daxue xuebao, 2021 In order to solve the problem of insufficient carrier space caused by the antenna loaded inside the conical seeker, the conformal four arm conical spiral antenna which applied to the main frequency of 1.575 GHz satellite positioning communication system ...
Wei SHEN +5 more
doaj +1 more source
A New Observation in Spiral and Curl Antenna Configurations above the Ground Plane
Applied Sciences, 2022 We report here that spiral and curl antennas are essentially the same when using the moment method. This aids in the understanding and design of the two antennas, and serves as the groundwork for new ideas regarding antennas.
Kazuhide Hirose +2 more
doaj +1 more source
IEEE Open Journal of Antennas and Propagation, 2021 A travelling-wave-fed slot spiral antenna with wide axial-ratio (AR) bandwidth and beamwidth for GNSS applications is proposed in this paper. The evolution procedure of the proposed antenna can be classified into three steps. Firstly, 12 identical spiral
Z. Zhong, Xiao Zhang
semanticscholar +1 more source