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161
A Compact Planar Monopole UWB MIMO Antenna for Short-Range Indoor Applications
Published 2023-04-01“…The orthogonal position of the unit cells replicates the single antenna thrice, thereby decreasing mutual coupling. A UWB MIMO antenna measuring 35 × 35 × 1.6 mm<sup>3</sup> is built using a microstrip line (50 Ω impedance) on an FR4 substrate having a thickness of 1.6 mm. …”
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162
A compact multiband planar antenna using modified L-shape resonator slots
Published 2020-10-01“…Simulated and measured results of the antennas' reflection coefficient are provided and there is good agreement between the simulation and measurement results. The antennas' measured peak gains are between 2 dB and 5 dB and measured efficiencies are between 40% and 80%. …”
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163
Dynamic Correction of the Influence of Long Measuring Path Irregularity in Antenna Tests
Published 2021-09-01“…The possibility of dynamic error correction in antenna measurements with a long test path caused by random microwave irregularities along it has been experimentally proved.…”
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164
X-band rectangular to square waveguide transition for transmitarray unit cell characterization
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165
Enhancing the Radiation Pattern of Circularly Polarized Dielectric Rod Antenna Using Planar Excitation Method
Published 2023-01-01“…A prototype of the proposed antenna has been fabricated and tested, and its results are in good agreement with the simulation results. Antenna measurements display an impedance bandwidth of 15.9% from 7.96 to 9.33 GHz, an axial ratio bandwidth of 13.4% from 8 to 9.15 GHz, and a LHCP gain between 11.8 and 14.4 dB. …”
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166
Orbital Angular Momentum (OAM) Antennas via Mode Combining and Canceling in Near-field
Published 2017-10-01“…We conducted near-field antenna measurements at 18 [GHz] by manually replacing the sub-reflectarray substrates with different OAM mode numbers of 0, ±1, when the OAM mode number of the main reflectarray was fixed to +1. …”
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167
Theoretical and practical validation tests for a Near-Field to Far-Field transformation algorithm using spherical wave expansion
Published 2012-07-01“…The use of spherical wave expansion of the solution of the wave equation to predict Far-Field values from data measured in the Near-Field region is a well known technique, typically used to perform antenna measurements in compact anechoic chambers. However, when designing the computing algorithm it is fundamental to validate the results and to quantify the numerical error of the method. …”
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168
Theoretical ingredients of a Casimir analog computer
Published 2013“…Finally, this correspondence is also key to a technique for computing quantum Casimir forces at micrometer scales using antenna measurements at tabletop (e.g., centimeter) scales, forming a type of analog computer for the Casimir force. …”
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169
Tightly Coupled Ultra-Wideband Phased-Array Implemented by Three-Dimensional Inkjet Printing Technique
Published 2022-10-01“…Here, through a unique combination of 3-D and 2-D inkjet printing of dielectric material and metallic ink, respectively, we demonstrate a monolithically integrated design for a nonplanar antenna for the first time. The antenna measurements herein show the complete characterization of this new process in terms of minimum feature size and achievable conductivities. …”
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170
Electronic Beam-Scanning Antenna Based on a Reconfigurable Phase-Modulated Metasurface
Published 2022-07-01“…The whole design process is verified by numerical simulations and is validated experimentally by far-field antenna measurements. The proposed metasurface enables the design of directive flat antennas with beam-scanning characteristics without complex feeding systems and power-consuming phase shifters, and thus provides potential interests for next generation antenna hardware.…”
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171
A Novel Approach for Partial Discharge Measurements on GIS Using HFCT Sensors
Published 2018-12-01“…An analysis to evaluate the performance of the method is shown, in comparison to VHF/UHF antenna measurements. The potential benefits of this novel technique rely on the small attenuation of PD signals in the GIS components in the HF range and sample rate reductions. …”
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172
2×1 Truncated Corner Microstrip Array Antenna to Increase Gain and Bandwidth for LTE Applications at 2.3 GHz Frequency
Published 2022-08-01“…Meanwhile, based on the results of the antenna measurements that have been implemented, the return loss value was= 11.07 dB, and the VSWR= 1.49, which works at a frequency of 2.2 GHz.…”
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173
Rancang Bangun Antena Bowtie pada Video Sender sebagai Pemancar TV Streaming
Published 2018-12-01“…The analysis process is carried out by analyzing the data taken from the audio and video results received in television as well as data from the measurement of signal strength captured by Register Transfer Level Software Define Radio (RTL SDR) and dipole antennas. Measurement results will be displayed in the sdrSharp software. …”
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174
A Low-Profile Circularly Polarized Millimeter-Wave Broadband Antenna Analyzed with a Link Budget for IoT Applications in an Indoor Scenario
Published 2024-02-01“…It also demonstrated the summation of orthogonal modes leading to circular polarization. The antenna-measured reflection coefficient |S11| > 10 dB was 19 GHz (23–42 GHz), and the axial ratio at −3 dB was 4.2 GHz (36–40.2 GHz). …”
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175
Extremely Emissive V-Grooved Microstructure Made of SU-8 for Enhanced Radiative Cooling
Published 2023-01-01“…Being inspired by the architecture of microwave absorbers used extensively for antenna measurements, we proposed a novel microstructure with near unity emissivity that can be further developed for radiative cooling. …”
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176
PRACTICAL IMPLEMENTATION OF HARDWARE AND SOFTWARE COMPLEX FOR PLANAR MEASUREMENTS OF ANTENNA CHARACTERISTICS IN THE NEAR ZONE
Published 2017-12-01“…A preliminary estimation of errors in amplitude and phase measurements in the dynamic range of 45 dB and a comparison of the characteristics of several types of antennas measured in far and near zones have been made. …”
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177
CALIBRATION OF THE EDGES HIGH-BAND RECEIVER TO OBSERVE THE GLOBAL 21 cm SIGNATURE FROM THE EPOCH OF REIONIZATION
Published 2017“…The EDGES High-Band experiment aims to detect the sky-average brightness temperature of the 21 cm signal from the epoch of reionization in the redshift range 14.8≳ z ≳ 6.5.To probe this redshifted signal, EDGES High-Band conducts single-antenna measurements in the frequency range 90–190 MHz from the Murchison Radio-astronomy Observatory in Western Australia. …”
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178
A dual band stub-loaded AMC design for the gain enhancement of a planar monopole antenna
Published 2018“…The unit cell is first multiplied into a 5 x 5 array to form the AMC plane, which acts as a reflector to the monopole antenna. Measurements indicated values of 6.76 dBi (at 2.4 GHz) in band-I, 6.5 dBi (at 3.53 GHz) in band-II, and finally 7.26 dBi (at 4.85 GHz) in band-III. …”
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179
New SRR/CSRR antenna dual Band-notch for WLAN and X Band Satellite communication
Published 2024-03-01“…To achieve our main goal based on the reduction of electromagnetic interference in narrowband communications (WLAN, WiMAX, and satellite), four-element rectangular split-ring resonators (SRRs) array are placed nearby the feedline to create notch band at approximately 5.15-5.35 and 5.725-5.85 GHz. The SRRs antenna's measured data indicate a directivity of 8.52 dBi, a gain of 7.18 dBi, a reflection coefficient of -27 dB, and an efficiency of 84.3%. …”
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180
A broadband circularly polarized Fabry Perot antenna with spatially separated superstrate area excitation for CubeSat applications
Published 2023-07-01“…The gain variation over the bandwidth is less than 1.3 dBic. The antenna measures 80 mm × 80 mm × 21.14 mm and is simple, lightweight, easily integrable with CubeSat body, and useful for X-Band data downlink. …”
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