Showing 141 - 160 results of 196 for search '"antenna measurement"', query time: 0.16s Refine Results
  1. 141

    Complex for Research and Measurement of Parameters and Characteristics of Radio Technical Facilities by M. S. Svirid

    Published 2022-06-01
    “…The complex is designed to generate ultra-wideband signals from 2 to 298 GHz in measuring systems that require the generation of complex radio signals: antenna measurements, research of radar characteristics and electrodynamic parameters of materials. …”
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    Article
  2. 142
  3. 143

    Liquid Crystal Polymer-Based Flexible Trap Ultra-Wideband Antenna Design by Xinwei Wang, Zhaoyang Xue, Qing Liang, Wei Xiong, Zhiyao Zhang

    Published 2023-01-01
    “…Good bending qualities have been attained by using liquid crystal polymer, a flexible material, as a dielectric substrate. An antenna measuring 30 mm × 35 mm × 0.1 mm was designed with two C-shaped slots etched on it to achieve notch function in the 3.20–4.10 GHz and 5.19–5.98 GHz frequency bands. …”
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    Article
  4. 144

    Determining of Ablation Zone in Ex Vivo Bovine Liver Using Time-Shift Measurements by Mohamed Lamhamdi, Ali Esmaeili, Kiyan Layes, Zakaria El Maaroufi, Georg Rose, Andreas Brensing, Bernd Schweizer

    Published 2023-10-01
    “…This setup uses a custom slot applicator performing the MWA at an operating frequency of 2.45 GHz and a custom bowtie antenna measuring the waves transmitted from the applicator. …”
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    Article
  5. 145

    USE OF GROUND PENETRATING RADAR TO STUDY SPATIAL VARIABILITY AND SOIL STRATIGRAPHY by José R. da R. Campos, Pablo Vidal-Torrado, Alcir J. Modolo

    “…We established one transect where measurements were completed using two techniques, common mid point (CMP) and constant offset profile (COP), both with 100- MHz frequency antennas. Measurements were also completed using 250 and 500 MHz shielded antennas. …”
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    Article
  6. 146

    Novel method of Characterization of dispersive properties of heterogeneous head tissue using Microwave sensing and Machine learning Algorithms by K. Lalitha, J. Manjula

    Published 2022-10-01
    “…The dataset required for classification is obtained from the antenna measurements. To facilitate the measurement process, an Antipodal Vivaldi antenna with the diamond-shaped parasitic patch (37 mmx21 mm) is designed to operate with a resonance frequency of 3 GHz. …”
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    Article
  7. 147

    Evaluation of a Dielectric-Only Transmitarray for Generating Multi-Focusing Near-Field Spots Using a Cluster of Feeds in the Ka-Band by Álvaro F. Vaquero, Marcos Rodríguez Pino, Manuel Arrebola, Sérgio A. Matos, Jorge R. Costa, Carlos A. Fernandes

    Published 2021-01-01
    “…Measurements are performed for different feed positions in order to validate the multi-focusing capability of the antenna. Measurements and simulations show a high agreement and validate the proposed design technique.…”
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    Article
  8. 148

    U-shaped inductively coupled feed radio frequency identification tag antennas for gain enhancement by Alhawari, Adam Reda Hasan, Ismail, Alyani, Jalal, Ali Sadeq Abdulhadi, Raja Abdullah, Raja Syamsul Azmir, A. Rasid, Mohd Fadlee

    Published 2014
    “…The peak gain of the proposed tag antenna is 2.5 dBi at its operating frequency, which is higher among conventional tag antennas. Measured results indicated that this tag antenna has a good impedance matching characteristic at 904–937 MHz (power reflection coefficient lower than −3 dB). …”
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    Article
  9. 149

    U-shaped inductively coupled feed RFID tag antenna for gain enhancement by Alhawari, Adam Reda Hasan, Ismail, Alyani, Jalal, Ali Sadeq Abdulhadi, Raja Abdullah, Raja Syamsul Azmir, A. Rasid, Mohd Fadlee

    Published 2013
    “…The peak gain of the proposed tag antenna is 2.5 dBi at its operating frequency, which is higher among conventional tag antennas. Measured results indicate that this tag antenna has a good impedance matching characteristic at 904-937 MHz (power reflection coefficient better than -3 dB). …”
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    Conference or Workshop Item
  10. 150

    Design and Implementation of Multiband Microstrip Patch Antenna for Wireless Applications by L. Prasad, B. Ramesh, K. S. R. Kumar, K. P. Vinay

    Published 2018-08-01
    “…All the simulation results like resonant frequency, return loss, radiation patterns and fabricated antenna measured result is presented in this paper. The antenna is simulated using CST 2014 software.…”
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    Article
  11. 151

    Multiband SRR loaded Koch star fractal antenna by C. Elavarasi, T. Shanmuganantham

    Published 2018-09-01
    “…The multiple Freq for antenna measured capitulate with a −10 dB at 1.88/6.54/7.88/12.20/15.08 GHz bands and cover up the Freq spectrum of GSM, WiMAX, IEEE 802.11a (WLAN)/b/g, IEEE 802.16e, ITU, S/C/X/Ku and K band, correspondingly. …”
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    Article
  12. 152

    The Radio Detector of the Pierre Auger Observatory – status and expected performance by Huege Tim

    Published 2023-01-01
    “…As part of the ongoing AugerPrime upgrade of the Pierre Auger Observatory, we are deploying short aperiodic loaded loop antennas measuring radio signals from extensive air showers in the 30 – 80 MHz band on each of the 1,660 surface detector stations. …”
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    Article
  13. 153

    Security engineering problems: determination of tolerance intervals for azimuthal positional errors by Ján Ivanka, Vladimíra Osadská

    Published 2022-03-01
    “…For any measurement technique, one of the basic requirements is a reliable estimation of the measurement errors, and this is especially true for methods that use a high level of mathematical analysis, such as near-zone antenna measurements. Determining error margins for any measurement system for a given antenna/probe/near-zone combination can be a difficult and time-consuming task, and mathematical complexity is a major reason for the difficulty.…”
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    Article
  14. 154

    Novel method of Characterization of dispersive properties of heterogeneous head tissue using Microwave sensing and Machine learning Algorithms by K. Lalitha, J. Manjula

    Published 2022-10-01
    “…The dataset required for classification is obtained from the antenna measurements. To facilitate the measurement process, an Antipodal Vivaldi antenna with the diamond-shaped parasitic patch (37 mmx21 mm) is designed to operate with a resonance frequency of 3 GHz. …”
    Get full text
    Article
  15. 155
  16. 156

    A Novel Rotation-Based Standardless Calibration and Characterization Technique for Free-Space Measurements of Dielectric Material by Adrian Diepolder, Mario Mueh, Susanne Brandl, Philipp Hinz, Christian Waldschmidt, Christian Damm

    Published 2024-01-01
    “…Thus, the presented methods are not restricted to free-space beams with high Gaussicity, allowing to employ a variety of feed antennas. Measurements in the frequency range from 220 GHz to 330 GHz of a well-known alumina sample verify the different calibration methods.…”
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    Article
  17. 157

    Substituting EMC emission measurement by field and cable scan method using measured transfer function by D. Rinas, J. Jia, A. Zeichner, S. Frei

    Published 2013-07-01
    “…<br><br> In this paper methods for computing transfer functions for the substitution of EMC antenna measurements with field- and cable scans in a specified calibration area are introduced. …”
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    Article
  18. 158

    A Low-Profile Hollow Waveguide Slot Array Antenna with Full-Corporate Feeding Network at K-Band by Y. E. Yamaç, A. Çalışkan, A. S. Türk, A. Kızılay

    Published 2022-05-01
    “…Although there are some fabrication errors and connector losses, antenna measurements are obtained sufficiently consistent with simulations. …”
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    Article
  19. 159

    Wideband and high‐gain circularly polarised microstrip antenna design using sandwiched metasurfaces and partially reflecting surface by Kunal Srivastava, Ashwani Kumar, Prashant Chaudhary, Binod K. Kanaujia, Santanu Dwari, Anand K. Verma, Karu P. Esselle, Raj Mittra

    Published 2019-02-01
    “…By placing the PRS superstrate above the antenna, gain further improves to 9.32 dBi without degrading the performance of the antenna. Measured results are presented to validate the antenna performance and results are compared against a large number of similarly available antenna.…”
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    Article
  20. 160

    A Low-Profile Hollow Waveguide Slot Array Antenna with Full-Corporate Feeding Network at K-Band by Y. E. Yamaç, A. Çalışkan, A. S. Türk, A. Kızılay

    Published 2022-05-01
    “…Although there are some fabrication errors and connector losses, antenna measurements are obtained sufficiently consistent with simulations. …”
    Get full text
    Article