Results 1 to 10 of about 3,109 (50)

Compact and Broadband-Balanced Amplifier for a Monolithic Microwave Integrated Circuit Using Lumped Elements Only

open access: yesInternational Journal of Antennas and Propagation, 2023
A flat phase difference across a broad bandwidth is achieved by appropriately combining the positive and negative phase propagation of right-handed (RH) and left-handed (LH) transmission lines (TLs), respectively.
Heeje Han, Hongjoon Kim
doaj   +1 more source

Quad Port Multipolarized Reconfigurable MIMO Antenna for Sub 6 GHz Applications

open access: yesInternational Journal of Antennas and Propagation, 2023
Recent reconfigurable technological advancements for wireless communication systems provide various global solutions. This research work presents a quad port multipolarized switchable multiple input multiple output (MIMO) antenna for sub 6 GHz ...
Deepa Thangarasu   +2 more
doaj   +1 more source

A Compact High-Gain, High-Power, Ultrashort Pulse Signal Acquisition Device

open access: yesInternational Journal of Antennas and Propagation, 2023
Ultrashort pulse (USP) signal with high peak power is also called ultrawideband signal, which has a broad application prospect in radar detection and electronic countermeasures and other fields.
Jinyong Fang   +5 more
doaj   +1 more source

Design of an Enhanced Isolation 8-Unit MIMO Antenna for Smartphones Operating in 5G nR and LTE 42 Bands

open access: yesInternational Journal of Antennas and Propagation, 2023
A miniaturized enhanced isolation 8-unit MIMO antenna for smartphones is proposed in this paper. The units are planar inverted-F antennas with the same structure, and we use the slotting method and shorted probe to miniaturize them.
Zhiwei Song   +3 more
doaj   +1 more source

An Iterative High-Accuracy ADI Method for the 3D Parabolic Equation

open access: yesInternational Journal of Antennas and Propagation, 2023
The alternating direction implicit parabolic equation (ADI-PE) method and the Crank–Nicolson parabolic equation (CN-PE) method have been widely used for solving the 3D parabolic equation (3D-PE) in radio wave propagation.
Xiaoping Wu   +3 more
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 New Adaptive System for Suppression of Transient Wind Disturbance in Large Antennas

open access: yesInternational Journal of Antennas and Propagation, 2019
Under transient wind disturbance, vibration deformation of the large antenna surface profile causes deterioration of pointing performance. This paper presents a new adaptive system to suppress unknown transient wind disturbance.
Wei Liang, Jin Huang, Jie Zhang
doaj   +1 more source

2D Efficient Unconditionally Stable Meshless FDTD Algorithm

open access: yesInternational Journal of Antennas and Propagation, 2016
This paper presents an efficient weighted Laguerre polynomials based meshless finite-difference time domain (WLP-MFDTD). By decomposing the coefficients of the system matrix and adding a perturbation term, a factorization-splitting scheme is introduced ...
Kang Luo   +4 more
doaj   +1 more source

Measurement-Based Analysis on Vehicle-to-Vehicle Connectivity in Tunnel Environment

open access: yesInternational Journal of Antennas and Propagation, 2023
Vehicular ad hoc network (VANET) brings an excellent solution to ensure road safety and transportation efficiency in critical environment like tunnel.
Suying Jiang   +4 more
doaj   +1 more source

Measurement of Coherence Bandwidth in UHF Radio Channels for Narrowband Networks

open access: yesInternational Journal of Antennas and Propagation, 2015
This paper presents results of investigation on the coherence bandwidth of narrowband radio channels in 430 MHz band. The coherence bandwidth values were estimated from a power delay profile obtained by recording CDMA2000 forward channel signals during ...
Jaroslaw Sadowski
doaj   +1 more source

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