high-frequency mutual coupling
Antenna mutual coupling suppression over wideband using embedded periphery slot for antenna arrays
... enable high-capacity wireless communications without increasing the signal bandwidth or signal-to-noise ratio ...wide frequency range. When multiple antennas are placed close the mutual ...
10
Self-Tuning Synthesis Filter against Mutual Coupling and Interferences for GNSS and Its Implementation on Embedded Board
... generate mutual coupling, such as the spacing between antenna less than half wavelength, thermal noise, or the variation in radiation parameter and nonideal characteristics in the design of antenna itself ...
13
Semicircle CSRR with Circular Slot Array Structures for High Level Mutual Coupling Reduction in MIMO Antenna
... suppressing mutual coupling between MIMO antennas. Furthermore, high level of mutual coupling by introducing circular slot in-between patch antennas on a substrate which creates ...
10
Mutual Coupling Reduction Techniques in Microstrip Patch Antennas: A Survey
... strong mutual coupling caused by the thick and high permittivity substrate without sacrificing the compact size or bandwidth of the antenna ...the mutual coupling. 8 dB mutual ...
6
Ultra-Small Single-Negative Metamaterial Insulator for Mutual Coupling Reduction of High-Profile Monopole Antenna Array
... efficiency is very small in the operation band (4.8 GHz–5.8 GHz). At 5 GHz, the total efficiency is close to 97.1% for the reference array,and decreases a little (the efficiency of 92.2%) for the proposed one. Note that the ...
9
MIMO Antenna Array Configuration for Minimum Mutual Coupling
... extra frequency spectrum or power [3]. The high potential of MIMO antennas is confirmed by their usage in many different wireless standards such as WLAN [4], WiMax [5], Long Term Evolution (LTE) [6] and ...
5
Minimization of Mutual Coupling in Arrays using Cross shape EBG
... EBG have gained attention in microwave and antenna areas in terms of antenna performance. Mutual coupling mainly arises due to surface waves excited on patch whenever the permittivity ℇr > 1. With the ...
5
Closely Spaced Dual Band-Notched UWB Antenna for MIMO Applications
... strong mutual coupling among antenna elements will make the technology ...of high isolation between MIMO antenna ...unlicensed frequency band of ...is frequency selective and does not ...
8
Mutual Coupling Reduction of a MIMO Antenna using Meta-Materials
... safety, high frequency battle field communication. Lenses for high gain antennas, improving ultrasonic sensors and even shielding structures from earth ...
5
Estimation of the Number of Signal Sources in Presence of Mutual Coupling
... We consider 16 dipole antennas that form a uniform linear array (ULA). The array impedance value quantifies the interaction between the antenna elements and has been simulated using Ansys R , the High ...
11
MUTUAL COUPLING ANALYSIS OF MOBILE BOT
... The working standard behind wireless power transmission is electromagnetic induction. Mutual coupling can happen in any high frequency structures when they are tuned or resonated to that ...
6
Optimum High Impedance Surface Configuration for Mutual Coupling Reduction in Small Antenna Arrays
... resonant frequency of such mushroom structures is slightly shifted depending on the angle of the incident wave ...the coupling between the elements is in the form of grazing ...the coupling between ...
15
Mutual Coupling Reduction of a Dual-Frequency Microstrip Antenna Array by Using U-Shaped DGS and Inverted U-Shaped Microstrip Resonator
... The coupling can result in severe degradation to the antenna’s radiation characteristics. While surface waves are weakly excited in very thin grounded dielectric substrates, space-waves dominate and show strong ...
8
Compact EBG Structures for Reduction of Mutual Coupling in Patch Antenna MIMO Arrays
... reduce mutual coupling between patch antenna ...attractive frequency for wireless ...reduce mutual coupling more than 20 ...patch coupling is studied with prototype EBG and ...
10
Null Steering GPS Array in the Presence of Mutual Coupling
... of mutual coupling in the GPS anti jamming antenna has been studied in ...the mutual coupling effect in the antenna array gain, beam width and side lob levels has been discussed, ...the ...
8
High Isolation MIMO Antenna Using Semi-Circle Patch for UWB Applications
... The frequency range of UWB is from 3.04 to 10.87 GHz. The high isolation is achieved by inserting an E-shaped slot in the radiating patch, and further enhancement is achieved by inserting a narrow slot in ...
10
The Influence of Fluid-Structure Interaction on Pipe System Loads (J174)
... Regarding the question if “uncoupled” calculations could result in non-conservative loads the above described calculations can not give a definite answer because besides the analysed pipe system flexibility there are a ...
8
Theoretical model of infrared spectra of hydrogen bonds in molecular crystals of 2-thiopheneacetic acid: Fermi resonance and Davdov coupling effects.
... The vibrational spectra of hydrogen-bonded dimers have been the subject of numerous experi- mental and theoretical studies [15–18]. The inves- tigation of the vibrational spectra of hydrogen- bonded systems in ...
12
Study of Scan Blindness of Microstrip Array by Using Dumbbell-Shaped Split-Ring DGS
... the mutual coupling between antenna elements and eliminate the scan ...in mutual coupling of 36 dB is obtained between elements at the operation frequency of ...
7
DOA Estimation with Sparse Array Under Unknown Mutual Coupling
... Abstract—In this paper, we propose a direction-of-arrival (DOA) estimation algorithm under unknown mutual coupling with a sparse linear array (SLA). We employ an SLA composed of two uniform linear arrays ...
7