Results 11 to 20 of about 59,565 (296)

Wideband Circularly Polarized Antenna With Reconfigurable 2-Dimensional Axial Ratio Beamwidth

open access: yesIEEE Access, 2021
This paper proposes a wideband circularly polarized antenna with a reconfigurable 2-dimensional axial ratio. For mobile satellite communication, the low profile CP antenna with wide axial ratio scanning and a wide frequency bandwidth is essential.
Jeong-Wook Kim   +5 more
doaj   +1 more source

A Compact Planar Monopole UWB MIMO Antenna for Short-Range Indoor Applications

open access: yesSensors, 2023
A compact, four-element planar MIMO (Multiple Input, Multiple Output) antenna that operates in an ultra-wideband is presented for diversity application.
Shanmugam Kolangiammal   +2 more
doaj   +1 more source

Wideband Epidermal Antenna for Medical Radiometry [PDF]

open access: yesSensors, 2020
Microwave thermometry is a noninvasive and passive technique for measuring internal body temperature. Wearable compact antennas, matched to the specific body area, are required for this method. We present a new epidermal wideband antenna for medical radiometry. The double asymmetric H-shaped slot antenna was designed to be matched to different parts of
Germán León   +4 more
openaire   +7 more sources

Embroidered Textile Antennas: Influence of Moisture in Communication and Sensor Applications

open access: yesSensors, 2021
Moisture causes detuning and increased losses in textile antennas, and it affects resonant and wideband textile antennas differently. In this work, we studied the effect of moisture on a resonant textile planar inverted-F antenna (PIFA) and a wideband ...
Davor Bonefačić, Juraj Bartolić
doaj   +1 more source

Compact UWB Monopole for Multilayer Applications [PDF]

open access: yes, 2006
A novel compact, dual layer UWB monopole antenna is presented. This low profile ultra-wideband antenna is fed by a 50 ? shielded strip-line with an array of metal vias making the conducting walls.
Bai, Qiang   +3 more
core   +1 more source

Design and Analysis of a Series-Fed Aperture-Coupled Antenna Array With Wideband and High-Efficient Characteristics

open access: yesIEEE Access, 2018
In this paper, a new wideband series-fed antenna array is proposed and analyzed. The antenna array structure consists of two antennas with two ports, two antennas with one port, and a wideband 180° coupler.
Mohammad Mahdi Honari   +4 more
doaj   +1 more source

A Wideband Wearable Antenna with AMC Ground Plane for WBAN Applications [PDF]

open access: yesRadioengineering, 2022
A flexible wearable antenna with wideband characteristics and having a conical radiation pattern which is suitable for ON body application is presented. To realize a compact antenna size, characteristic modal (CM) analysis is performed initially, and the
S. Bhattacharjee   +3 more
doaj  

Miniaturized Wideband Loop Antenna Using a Multiple Half-Circular-Ring-Based Loop Structure and Horizontal Slits for Terrestrial DTV and UHD TV Applications

open access: yesSensors, 2021
A miniaturized wideband loop antenna for terrestrial digital television (DTV) and ultra-high definition (UHD) TV applications is proposed. The original wideband loop antenna consists of a square loop, two circular sectors to connect the loop with central
Junho Yeo, Jong-Ig Lee
doaj   +1 more source

Switchable filtering in vivaldi antenna [PDF]

open access: yes, 2010
Presented is a new frequency switchable Vivaldi antenna that has a capability to operate in a wideband mode (1-3 GHz) and reconfigure to six different subbands of operations.
Gardner, P.   +3 more
core   +1 more source

Single-element based ultra-wideband antenna array concepts for wireless high-precision 2-D local positioning [PDF]

open access: yesAdvances in Radio Science, 2013
We generally categorize the approaches for ultra-wideband antenna array design, and consequently propose simplified concepts for antenna arrays for a high-precision, ultra-wideband FMCW radar 2-D local positioning system to obtain robustness against ...
M. Gardill   +3 more
doaj   +1 more source

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