The Experts below are selected from a list of 22212 Experts worldwide ranked by ideXlab platform

Chialun Tang - One of the best experts on this subject based on the ideXlab platform.

  • band notched ultra wideband planar Monopole Antenna
    Microwave and Optical Technology Letters, 2005
    Co-Authors: Saouwen Su, Kinlu Wong, Chialun Tang
    Abstract:

    An ultra-wideband (UWB) planar metal-plate Monopole Antenna with a band-notch characteristic is presented. The proposed planar metal-plate Monopole Antenna is embedded with an inverted U-shape slot, whose length is selected to be a half-wavelength at the desired notched frequency. By adjusting the slot length, the notched frequency band within the Antenna's operating bandwidth can be easily controlled. A design example for an UWB (3.1–10.6 GHz) planar metal-plate Monopole Antenna with a notched frequency band at 5 GHz is demonstrated. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 44: 217–219, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20592

  • broadband omnidirectional metal plate Monopole Antenna
    IEEE Transactions on Antennas and Propagation, 2005
    Co-Authors: Kinlu Wong, Saouwen Su, Chialun Tang
    Abstract:

    A novel broad-band omnidirectional metal-plate Monopole Antenna is presented. The proposed Antenna is a step-shaped metal-plate Monopole, which is easily fabricated from bending a metal plate (a 0.2 mm thick brass sheet used in this study). The proposed Antenna shows improved omnidirectional radiation for frequencies across a very wide operating bandwidth (frequency ratio about 1:3), compared to a corresponding planar Monopole Antenna. Details of the proposed Antenna design are described, and the experimental performance of some prototypes is studied.

Kai Lung Hsiao - One of the best experts on this subject based on the ideXlab platform.

  • CPW-fed Monopole Antenna for multiple system integration
    IEEE Transactions on Antennas and Propagation, 2014
    Co-Authors: Chien Jen Wang, Kai Lung Hsiao
    Abstract:

    In this work, a coplanar-waveguide (CPW)-fed Monopole Antenna for multiple wireless communication system integration is developed. A rectangular Monopole Antenna and a feeding structure are fabricated on the same plane of the substrate to simplify circuit processing and position alignment. Simply tuning one of the CPW ground-plane widths, which results in an asymmetrical ground plane structure, enhances the impedance bandwidth and excites the circular polarization at 1.57 GHz. To cover the operation bandwidth of the wireless local area network (WLAN) system, a parasitic inverted-L radiating strip is shorted to the ground plane. The measured impedance bandwidth of a S11

Chien Jen Wang - One of the best experts on this subject based on the ideXlab platform.

  • Bandwidth Enhancement Technique of the Meandered Monopole Antenna
    International Journal of Antennas and Propagation, 2015
    Co-Authors: Chien Jen Wang, Dai-heng Hsieh
    Abstract:

    A small dual-band Monopole Antenna with coplanar waveguide (CPW) feeding structure is presented in this paper. The Antenna is composed of a meandered Monopole, an extended conductor tail, and an asymmetrical ground plane. Tuning geometrical structure of the ground plane excites an additional resonant frequency band and thus enhances the impedance bandwidth of the meandered Monopole Antenna. Unlike the conventional Monopole Antenna, the new resonant mode is excited by a slot trace of the CPW transmission line. The radiation performance of the slot mode is as similar as that of the Monopole. The parametrical effect of the size of the one-side ground plane on impedance matching condition has been derived by the simulation. The measured impedance bandwidths, which are defined by the reflection coefficient of −6 dB, are 186 MHz (863–1049 MHz, 19.4%) at the lower resonant band and 1320 MHz (1490–2810 MHz, 61.3%) at the upper band. From the results of the reflection coefficients of the proposed Monopole Antenna, the operated bandwidths of the commercial wireless communication systems, such as GSM 900, DCS, IMT-2000, UMTS, WLAN, LTE 2300, and LTE 2500, are covered for uses.

  • CPW-fed Monopole Antenna for multiple system integration
    IEEE Transactions on Antennas and Propagation, 2014
    Co-Authors: Chien Jen Wang, Kai Lung Hsiao
    Abstract:

    In this work, a coplanar-waveguide (CPW)-fed Monopole Antenna for multiple wireless communication system integration is developed. A rectangular Monopole Antenna and a feeding structure are fabricated on the same plane of the substrate to simplify circuit processing and position alignment. Simply tuning one of the CPW ground-plane widths, which results in an asymmetrical ground plane structure, enhances the impedance bandwidth and excites the circular polarization at 1.57 GHz. To cover the operation bandwidth of the wireless local area network (WLAN) system, a parasitic inverted-L radiating strip is shorted to the ground plane. The measured impedance bandwidth of a S11

Ratmalgre Alex Sylvestere Desire Koala - One of the best experts on this subject based on the ideXlab platform.

Saouwen Su - One of the best experts on this subject based on the ideXlab platform.

  • band notched ultra wideband planar Monopole Antenna
    Microwave and Optical Technology Letters, 2005
    Co-Authors: Saouwen Su, Kinlu Wong, Chialun Tang
    Abstract:

    An ultra-wideband (UWB) planar metal-plate Monopole Antenna with a band-notch characteristic is presented. The proposed planar metal-plate Monopole Antenna is embedded with an inverted U-shape slot, whose length is selected to be a half-wavelength at the desired notched frequency. By adjusting the slot length, the notched frequency band within the Antenna's operating bandwidth can be easily controlled. A design example for an UWB (3.1–10.6 GHz) planar metal-plate Monopole Antenna with a notched frequency band at 5 GHz is demonstrated. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 44: 217–219, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20592

  • broadband omnidirectional metal plate Monopole Antenna
    IEEE Transactions on Antennas and Propagation, 2005
    Co-Authors: Kinlu Wong, Saouwen Su, Chialun Tang
    Abstract:

    A novel broad-band omnidirectional metal-plate Monopole Antenna is presented. The proposed Antenna is a step-shaped metal-plate Monopole, which is easily fabricated from bending a metal plate (a 0.2 mm thick brass sheet used in this study). The proposed Antenna shows improved omnidirectional radiation for frequencies across a very wide operating bandwidth (frequency ratio about 1:3), compared to a corresponding planar Monopole Antenna. Details of the proposed Antenna design are described, and the experimental performance of some prototypes is studied.