Results 21 to 30 of about 59,410 (311)
Dual-Band Omnidirectional Circularly Polarized Antenna
IEEE Transactions on Antennas and Propagation, 2013 A dual-band omnidirectional circularly polarized antenna is proposed. The antenna comprises back-to-back microstrip patches fed by a coplanar waveguide. A very low frequency ratio of 1.182 has been achieved, which can be easily tuned by adjusting four lumped capacitors incorporated into the antenna.
Narbudowicz, Adam +2 more
openaire +5 more sources
Dual-Band Monopole Antenna for RFID Applications [PDF]
Future Internet, 2019 Over the past decade, radio-frequency identification (RFID) technology has attracted significant attention and become very popular in different applications, such as identification, management, and monitoring. In this study, a dual-band microstrip-fed monopole antenna has been introduced for RFID applications.
Naser Ojaroudi Parchin +3 more
openaire +3 more sources
Dual-Band Wearable Metallic Button Antennas and Transmission in Body Area Networks [PDF]
, 2010 A dual-band metallic antenna with the appearance of a button on a pair of jeans for use with wearable computer networks, emergency rescue scenarios and future wireless medical applications is presented.
Miller, J.A. +3 more
core +1 more source
Applied Sciences, 2021 This paper presents a low-profile dual-band antenna with directional radiation characteristics for wireless local area network (WLAN) applications. The proposed directional antenna is composed of a coupling microstrip line, two F-shaped strips, two ...
Yuqing Dou +4 more
doaj +1 more source
Pattern Similarity and Gain Enhancement of Dual-Band Antenna Using an ENZ Metamaterial [PDF]
Journal of Electromagnetic Engineering and Science, 2023 A dual-band antenna with pattern similarity using the energy-squeezing mechanism of an epsilon-near-zero (ENZ) metamaterial is designed, and experimental results are presented with simulated data.
Srujana Vahini Nandigama +3 more
doaj +1 more source
A Single-Feeding Port HF-UHF Dual-Band RFID Tag Antenna [PDF]
Journal of the Korean Institute of Electromagnetic Engineering and Science, 2017 In this paper, a dual-band high frequency (HF) and ultra-high frequency (UHF) radio-frequency identification (RFID) tag antenna is presented that operates in the 13.56 MHz band as well as in the 920 MHz band.
Nam Ha-Van, Chulhun Seo
doaj +1 more source
A twelve element dual-band MIMO antenna for 5G smartphones.
PLoS ONE, 2023 In this paper, a 12x12 dual-band MIMO antenna for 5G smartphones is proposed. It operates in the sub 6 GHz (2.4GHz and 3.5GHz) frequency bands. The MIMO antenna elements are printed on an FR4 epoxy substrate that has a thickness of 0.8mm.
Durria Abbasi +7 more
doaj +1 more source
A Novel Concentric Annular-Ring Slot Dual-Band Circularly Polarized Microstrip Antenna
International Journal of Antennas and Propagation, 2018 A simple structure concentric annular-ring slot dual-band circularly polarized (CP) microstrip antenna operating at ISM band (2.45 GHz) and 5G band (3.5 GHz) is proposed in this paper.
Yong Cheng, Hui Liu
doaj +1 more source
IEEE Access, 2021 The demand for multi-band high-power antennas, which have been rarely reported, becomes urgent in high-power microwave field. To meet the demand, a C/X dual-band high-power circularly polarized patch reflectarray antenna is proposed in this paper.
Gexing Kong +3 more
doaj +1 more source
Integrated Dual-Band Filtering/Duplexing Antennas [PDF]
IEEE Access, 2018 In this paper, the state-of-the-art integrated filtering antennas with dual-band operation are first reviewed. Then, two designs of dual-band microstrip filtering antennas with a low frequency-ratio are presented. The 1st design is a dual-band dual-polarization (DBDP) antenna with a frequency ratio of 1.2 on a single patch, by employing the coupled ...
Chun-Xu Mao +6 more
openaire +2 more sources