Results 21 to 30 of about 88,827 (197)
Electronics Letters, 1965 An experimental investigation on the impedance and radiation characteristics of thin-wire loop antennas is described. Impedance plots and radiation patterns are presented, showing a wide range of characteristic impedances and a capability of producing nearly isotropic radiation patterns.
Mario, Boella +3 more
openaire +2 more sources
Slim dual‐polarised antenna with omnidirectional patterns for WLAN applications
Electronics Letters, 2019 A slim dual‐polarised antenna with omnidirectional patterns is proposed for wireless local area network (WLAN) applications. The antenna is a composition of a modified J‐type antenna for vertical polarisation and two crossed‐loop antennas for horizontal ...
Li Sun, Yulian Li
doaj +1 more source
Analysis of Vertical Loop Antenna and Its Wide and Flat Variant Performance in Wearable Use
IEEE Access, 2018 This paper presents an analysis of the input impedance and radiation pattern behavior for a rectangular loop antenna when it is reshaped from a narrow square to wide and flat.
Markus Berg +2 more
doaj +1 more source
Influence of Different Types of Metal Plates on a High Frequency RFID Loop Antenna: Study and Design
Advances in Electrical and Computer Engineering, 2009 This paper presents our research on the influence of metal plates on a radio frequency identification (RFID) loop antenna operating at 13.56MHz. More specific we have tested different types of metal plates near a loop antenna in terms of resonance ...
De BACKER, L. +6 more
doaj +1 more source
, 2015 This chapter on loop antennas covers implementation aspects of both electrically small and electrically large loops which have a wide range of applications. On one side, they are still a part of the old broadcasting systems such as analog radios, and, on the other side, they are increasingly gaining attention for the contemporary high-definition video ...
Massey, PJ +4 more
openaire +3 more sources
IEEE Access, 2020 We evaluated a 16-channel loop + dipole (LD) transceiver antenna array with improved specific absorption rate (SAR) efficiency for 10.5 Tesla (T) human head imaging applications.
Myung Kyun Woo +8 more
doaj +1 more source
Design and Performance Evaluation of a Dual Antenna Joint Carrier Tracking Loop
Sensors, 2015 In order to track the carrier phases of Global Navigation Satellite Systems (GNSS) signals in signal degraded environments, a dual antenna joint carrier tracking loop is proposed and evaluated.
Wenfei Guo +4 more
doaj +1 more source
Dual-Band RFID Tag Antenna Based on the Hilbert-Curve Fractal for HF and UHF Applications [PDF]
, 2016 A novel single-radiator card-type tag is proposed which is constructed using a series Hilbert-curve loop and matched stub for high frequency (HF)/ultra high frequency (UHF) dual-band radio frequency identification (RFID) positioning applications.
Alibakhshikenari, Mohammad +4 more
core +1 more source
Design of a Wideband Inductively Coupled Loop Feed Patch Antenna for UHF RFID Tag [PDF]
, 2015 A planar wideband patch antenna for ultra-high frequency (UHF) radio frequency identification (RFID) tag for metallic applications is presented in this research work.
Bashri, M. S. R. +2 more
core +2 more sources
Small-Size Reconfigurable Loop Antenna for Mobile Phone Applications
IEEE Access, 2016 A small-size reconfigurable loop antenna for mobile phone applications with a compact volume of 55 × 5 × 3 mm3 is proposed. In addition to the traditional three loop antenna modes, namely, 0.5-λ, 1-λ, and 1.5-λ modes ...
Hao Wang +6 more
doaj +1 more source