Results 21 to 30 of about 7,500 (266)

A Low Profile, Dual-band, Dual Polarized Antenna for Indoor/Outdoor Wearable Application

open access: yesIEEE Access, 2019
A planar, low-profile, dual-band and dual-polarized antenna on a semi-flex substrate is proposed in this paper. The antenna is fabricated on Rogers substrate with a thickness of 3.04 mm and sized at 70.4×76.14×3.11 mm3 (0.37λ0 ...
Kashif Nisar Paracha   +6 more
doaj   +1 more source

A Four-Port Dual-Band Dual-Polarized Antenna for Ku-Band Satellite Communications

open access: yesApplied Sciences
This paper presents the development of a four-port dual-band dual-polarized antenna for transmitting/receiving (Tx/Rx) applications in Ku-band satellite communications.
Son Trinh-Van   +3 more
doaj   +1 more source

A Dual-Band Dual-Polarized Antenna with Improved Isolation Characteristics for Polarimetric SAR Applications

open access: yesApplied Sciences, 2021
A dual-band dual-polarized antenna with high isolation characteristics is proposed for polarimetric synthetic aperture radar (PolSAR) applications. The antenna consists of four dipole antennas and 2 × 2 patch antenna arrays operating at the P-band (450 ...
Daesung Park, Jaehoon Choi
doaj   +1 more source

Dual Band Microstrip Antenna

open access: yesTecnología y Ciencia
The amount of data in today’s communication systems is increasing considerably, which in turn increases the bandwidth needed to deploy a given service. This requires antennas that are capable of operating simultaneously in more than one band.
Juan Eduardo Ise   +5 more
doaj   +1 more source

Design and Performance Prediction of a Dual-Band Coupled-Fed Dipole Array Antenna for PCL Systems in the VHF Band

open access: yesApplied Sciences, 2020
This article proposes the design of a dual-band coupled-fed dipole antenna for passive coherent location (PCL) systems in the very high frequency (VHF) band.
Sungsik Wang, Hongsuk Shim, Hosung Choo
doaj   +1 more source

A Miniaturized Dual-Band Short-Ended ZOR Antenna with Backed Ground Plane for Improved Bandwidth and Radiation Efficiency

open access: yesInternational Journal of Antennas and Propagation, 2023
This paper presents a miniaturized planar dual-band short-ended metamaterial antenna with the backed ground plane to improve antenna bandwidths and radiation characteristics.
Rajkishor Kumar   +4 more
doaj   +1 more source

A sixteen-element dual band compact array antenna for ISM/Bluetooth/Zigbee/WiMAX/WiFi-2.4/5/6 GHz applications

open access: yesHeliyon, 2022
A sixteen-element dual band microstrip array antenna with four branches has been presented in this paper. The dual band array antenna is suitable for ISM/Bluetooth/Zigbee/WiMAX/ WiFi-2.4/5/6 GHz applications.
Liton Chandra Paul   +4 more
doaj   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Performance Analysis on Dual-band Annular Ring Microstrip Antenna at 1.9 GHz and 2.1 GHz Operating Frequencies

open access: yesIJAIT (International Journal of Applied Information Technology), 2018
Annular ring antenna concept has been utilized in many applications. This paper presents the adoption of annular ring concept on a dual-band microstrip antenna. The antenna is designed to operate at 1.9 GHz and 2.1 GHz operating frequencies.
Cahya Adi Kuncara   +3 more
doaj   +1 more source

Low-Profile Dual-Band Reflector Antenna for High-Frequency Applications

open access: yesSensors, 2023
A high-gain low-profile reflector antenna with dual-band radiation ability is presented in this paper. The antenna achieves a relative 2 dB gain bandwidth of 10% around fl, and a relative 2 dB gain bandwidth of 20%, around fh, where fl and fh are the ...
Senlin Lu, Shi-Wei Qu
doaj   +1 more source

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