Results 1 to 10 of about 67,724 (288)

OPERATION MODES AND CHARACTERISTICS OF PLASMA DIPOLE ANTENNA [PDF]

open access: yesActa Polytechnica, 2015
Existence modes of  surface electromagnetic wave on a plasma cylinder, operating modes and characteristics of the plasma antenna were studied in this paper.
Nikolay Nikolaevich Bogachev   +3 more
doaj   +2 more sources

Adjusting Radiation Pattern of Small Antennas [PDF]

open access: yes2020 International Workshop on Antenna Technology (iWAT), 2020
The antenna clusters have been used to control the impedance properties of the antenna, but they have potential also in radiation pattern reconfigurability. We demonstrate the benefits of multi-feed antennas using a mobile antenna as an example.
Luomaniemi, Rasmus   +3 more
openaire   +3 more sources

Design and Fabrication of the Split Ring Resonator Shaped Two-Element MIMO Antenna with Multiple-Band Operation for WiMAX/5G/Zigbee/Wi-Fi Applications

open access: yesMicromachines, 2022
In this manuscript, we proposed the split ring resonator loaded multiple-input multiple-output (MIMO) antenna design for the frequency range of 1 and 25 GHz. The proposed antenna is numerically investigated and fabricated to analyze the different antenna
Ammar Armghan   +5 more
doaj   +1 more source

High‐efficient optimisation method of antenna array radiation pattern synthesis based on multi‐layer perceptron network

open access: yesIET Microwaves, Antennas & Propagation, 2022
With the increasing complexity of the application environment of antenna arrays and the increasing requirements for antenna array radiation patterns, efficient optimisation methods of antenna array radiation pattern synthesis have always been the ...
Shiyuan Zhang   +3 more
doaj   +1 more source

A Deep Learning-Based Approach for Radiation Pattern Synthesis of an Array Antenna

open access: yesIEEE Access, 2020
In this article, we propose a deep neural network (DNN)for the radiation pattern synthesis of an antenna. The DNN utilizes the radiation patterns as inputs and the amplitude and phase of the antenna elements as outputs.
Jae Hee Kim, Sang Won Choi
doaj   +1 more source

A Multifunctional Compact Pattern Reconfigurable Antenna With Four Radiation Patterns for Sub-GHz IoT Applications

open access: yesIEEE Open Journal of Antennas and Propagation, 2021
A compact pattern reconfigurable antenna with four radiation patterns is proposed for sub-GHz IoT applications. The antenna has two functional modes; Mode I has three uncorrelated patterns, while Mode II has electric and magnetic omnidirectional patterns.
Saeed A. Haydhah   +4 more
doaj   +1 more source

A High-Efficient Method for Synthesizing Multiple Antenna Array Radiation Patterns Simultaneously Based on Convolutional Neural Network

open access: yesInternational Journal of Antennas and Propagation, 2023
This paper proposes a high-efficient method that utilizes deep learning technology for synthesizing multiple antenna array radiation patterns simultaneously.
Shiyuan Zhang, Chuan Shi, Ming Bai
doaj   +1 more source

Comparative analysis of antenna isolation characteristic with & without self‐interference reduction techniques towards in‐band full‐duplex operation

open access: yesIET Microwaves, Antennas & Propagation, 2023
The advancement of communication and radar systems has triggered the demand for in‐band full‐duplex (IBFD) operation. IBFD is regarded as one of the most outstanding technologies in terms of its ability to improve spectral efficiency and data rate.
Merve Tascioglu Yalcinkaya   +2 more
doaj   +1 more source

Analytical beampattern synthesis for symmetric nonuniform linear array based on superposition principle

open access: yesElectronics Letters, 2023
In this letter, an analytical method for the beampattern synthesis of symmetric nonuniform array is proposed. This method consists of two steps. In the first step, it acquires a real symmetric excitation by the convex optimization method to attain a ...
Fei Shi, Mengkai Hu, Xiuquan Dou
doaj   +1 more source

Modelling of a microstrip patch antenna using a hybrid FDTD/PEEC method [PDF]

open access: yes, 2008
A hybrid technique combining FDTD and PEEC methods is applied to the prediction of radiation from printed structures. The predicted radiation patterns of a microstrip patch antenna are compared to those obtained using FDTD.A hybrid technique combining ...
Railton, CJ
core   +2 more sources

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