The Experts below are selected from a list of 324 Experts worldwide ranked by ideXlab platform
Kin-lu Wong - One of the best experts on this subject based on the ideXlab platform.
-
A broad-band Rectangular Patch antenna with a pair of wide slits
IEEE Transactions on Antennas and Propagation, 2001Co-Authors: Kin-lu WongAbstract:A new broad-band design of a probe-fed Rectangular Patch antenna with a pair of wide slits is proposed and experimentally studied. The proposed design is with an air substrate, and experimental results show that, simply by inserting a pair of wide slits at one of the radiating edges of the Rectangular Patch, good impedance matching over a wide bandwidth can easily be achieved for the proposed antenna. With an air substrate of thickness about 8% of the wavelength of the center operating frequency, the proposed antenna can have an impedance bandwidth of about 24%. For frequencies within the impedance bandwidth, good radiation characteristics are also observed, with a peak antenna gain of about 7.2 dBi.
Nobuyoshi Kikuma - One of the best experts on this subject based on the ideXlab platform.
-
Millimeter-wave transition from waveguide to two microstrip lines using Rectangular Patch element
IEEE Transactions on Microwave Theory and Techniques, 2007Co-Authors: Hideo Iizuka, Kunio Sakakibara, Nobuyoshi KikumaAbstract:Abstract—A millimeter-wave transition from a waveguide to two microstrip lines and the design methodology are proposed. A Rectangular Patch element in a short-terminated waveguide is analyzed by the cavity model of a Patch antenna and the dyadic Green’s function of the waveguide. The analysis points out that the Rectangular Patch element has an optimum width for wideband, which only has the function of the broad wall width of the waveguide. The transition also works as a divider. A numerical investigation of a transition having two microstrip lines validates the analytical model in terms of wideband, and indicates that the distance between the two microstrip lines has an optimum length for suppressing higher order modes. A prototype transition exhibits an insertion loss of 0.5 dB from 76 to 77 GHz, and a bandwidth of 6.9% (5.29 GHz) for the reflection coefficient below 15 dB for the waveguide port.
Kiyotoshi Yasumoto - One of the best experts on this subject based on the ideXlab platform.
-
Slotted single layer broadband Rectangular Patch antennas
2009 Applied Electromagnetics Conference (AEMC), 2009Co-Authors: L. Lolit Kumar Singh, Bhaskar Gupta, Partha P Sarkar, Kunikai Yoshitomi, Kiyotoshi YasumotoAbstract:Three different slotted broadband single layer Rectangular Patch antennas having improved radiation patterns and gain are presented. A single I- shaped slot single layer Rectangular Patch antenna gives an impedance bandwidth (−10dB return loss) of 24.39% with an average gain of about 10.51 dBi over the entire passband and peak gain of 11.04 dBi. With double I- slot an impedance bandwidth (−10dB return loss) of 27.88% with average gain of about 9.95 dBi over the entire passband and peak gain of 10.27 dBi have been achieved. Another single T-shaped slot broadband single layer Rectangular Patch antenna with impedance bandwidth of 25.23% with average gain of about 7.43 dBi over the entire passband and peak gain of 9.88 dBi is presented. The IE3D simulation software based on Method of Moments (MoM) is used for simulation and Agilent's E5071B ENA series Network Analyzer is used for measurements. Air substrate (e r = 1) is used for simulation and foam (e r ≈ 1) is used to support Patch for experimental purposes. Both simulated and measured results are presented.
-
Slotted single layer broadband Rectangular Patch antennas
2009 Applied Electromagnetics Conference (AEMC), 2009Co-Authors: Lolit Kumar L. Singh, Bhaskar Gupta, Partha P Sarkar, Kunikai Yoshitomi, Kiyotoshi YasumotoAbstract:Three different slotted broadband single layer Rectangular Patch antennas having improved radiation patterns and gain are presented. A single I- shaped slot single layer Rectangular Patch antenna gives an impedance bandwidth (-10dB return loss) of 24.39% with an average gain of about 10.51 dBi over the entire passband and peak gain of 11.04 dBi. With double I- slot an impedance bandwidth (-10dB return loss) of 27.88% with average gain of about 9.95 dBi over the entire passband and peak gain of 10.27 dBi have been achieved. Another single T-shaped slot broadband single layer Rectangular Patch antenna with impedance bandwidth of 25.23% with average gain of about 7.43 dBi over the entire passband and peak gain of 9.88 dBi is presented. The IE3D simulation software based on Method of Moments (MoM) is used for simulation and Agilent's E5071B ENA series Network Analyzer is used for measurements. Air substrate (¿r = 1) is used for simulation and foam (¿r ¿ 1) is used to support Patch for experimental purposes. Both simulated and measured results are presented.
Mohd Azlishah Othman - One of the best experts on this subject based on the ideXlab platform.
-
Rectangular Patch Antenna with Notch and Slot on Ground Plate for WLAN Application
Journal of Telecommunication Electronic and Computer Engineering, 2017Co-Authors: Mohamad Hafize Ramli, Mohd Azlishah Othman, Mohamad Zoinol Abidin Abd Aziz, Siti Nurfarhanah Azizul Azlan, Nornikman Hassan, Muhammad Syafiq Noor Azizi, Abdul Halim DahalanAbstract:A new design of Rectangular Patch antenna was presented in this paper. This antenna was proposed to achieve wider bandwidth and good performance in return loss (S11), that is below -10dB. The design of this antenna was an improvement from the conventional Rectangular Patch antenna by making a parallel slot, Rectangular slot on the ground plane and introducing a notch (dual mode). The Rectangular antenna was designed and simulated using CST Microwave Studio. The application of this antenna was for WLAN application at 5.25 GHz. There was a slightly different result on the bandwidth and return loss value for the simulation and measurement.
-
Investigation of Inverted Suspended Rectangular Patch Circular Polarized Antenna
Theory and Applications of Applied Electromagnetics, 2015Co-Authors: Kho Shin Phoo, M. Z. A. Abd Aziz, Badrul Hisham Ahmad, Mohd Azlishah Othman, M. K. Suaidi, F. Abd. MalekAbstract:In this paper, broadband circular polarized antenna with different slot configuration are designed and investigated. The proposed antennas are designed at 2.4 GHz for Wireless Local Area Network (WLAN) application. The antennas are designed by using L-probe amendment with inverted Rectangular Patch. This technique is used to improve the bandwidth and gain of antenna. The effects on the antenna performance are investigated for the configuration of Rectangular and triangular slot that embedded on the inverted Rectangular Patch. The inverted Rectangular Patch is embedded with two circular slots which are parallel with each other. The position of the circular slots is altered to determine the orientation of circular polarization. The simulation is done by using Computer Simulation Technology (CST) software. Each inverted suspended circular polarized antenna is achieved bandwidth more than 200 MHz and meet broadband application. The axial ratio for each circular polarized antenna is below 3 dB.
-
ICCSCE - Investigation of broadband inverted suspended Rectangular Patch linear polarized antenna
2014 IEEE International Conference on Control System Computing and Engineering (ICCSCE 2014), 2014Co-Authors: Kho Shin Phoo, M. Z. A. Abd Aziz, Badrul Hisham Ahmad, Mohd Azlishah Othman, M. K. Suaidi, F. Abd. MalekAbstract:In this paper, broadband inverted suspended linear polarized antennas with operating frequency at 2.4GHz for Wireless Local Area Network (WLAN) application are designed. Various shapes of slot are added on the inverted suspended Rectangular Patch to investigate the effect of the antenna performance. The antennas are designed by using L-probe amendment with inverted suspended Rectangular Patch, where this approach is used to enhance the bandwidth and gain of the antennas. The simulation is done by using Computer Simulation Technology (CST) software. The bandwidths for the inverted suspended linear polarized antennas with different shape of slot are more than 200MHz, which meet broadband application. Besides, the axial ratio for each antenna is above 3dB.
-
Investigation of broadband inverted suspended Rectangular Patch linear polarized antenna
2014 IEEE International Conference on Control System Computing and Engineering (ICCSCE 2014), 2014Co-Authors: Kho Shin Phoo, Badrul Hisham Ahmad, Mohd Azlishah Othman, M. K. Suaidi, M. Abd. Z. A. Aziz, Abd. F. MalekAbstract:In this paper, broadband inverted suspended linear polarized antennas with operating frequency at 2.4GHz for Wireless Local Area Network (WLAN) application are designed. Various shapes of slot are added on the inverted suspended Rectangular Patch to investigate the effect of the antenna performance. The antennas are designed by using L-probe amendment with inverted suspended Rectangular Patch, where this approach is used to enhance the bandwidth and gain of the antennas. The simulation is done by using Computer Simulation Technology (CST) software. The bandwidths for the inverted suspended linear polarized antennas with different shape of slot are more than 200MHz, which meet broadband application. Besides, the axial ratio for each antenna is above 3dB.
Trasma Yunita - One of the best experts on this subject based on the ideXlab platform.
-
Design MIMO Antenna with U-Slot Rectangular Patch Array for 5G Applications
2018Co-Authors: Fajar Wahyu Ardianto, Farhan Fathir Lanang, Setyawan Renaldy, Trasma YunitaAbstract:In this paper, we present the design of U-Slot Rectangular Patch array antenna to use in the Multiple-Input Multiple-Output (MIMO) for 5G applications at 28 GHz frequency. The antenna consists of eight elements with Rectangular Patch array $1 \times 2$ and added U-Slot. The desired antenna is designed on a substrate Rogers Duroid 5880 with a relative dielectric permittivity of 2.2 and its thickness is 1.575 mm. The simulation results show, its return loss is less than-10 dB in the frequency range of 27.5–29.5 GHz and its provides a wide bandwidth with 2.0 GHz and a unidirectional radiation pattern. Mutual coupling value is less than-20 dB for each element.
-
Design MIMO Antenna with U-Slot Rectangular Patch Array for 5G Applications
2018 International Symposium on Antennas and Propagation (ISAP), 2018Co-Authors: Fajar Wahyu Ardianto, Farhan Fathir Lanang, Setyawan Renaldy, Trasma YunitaAbstract:In this paper, we present the design of U-Slot Rectangular Patch array antenna to use in the Multiple-Input Multiple-Output (MIMO) for 5G applications at 28 GHz frequency. The antenna consists of eight elements with Rectangular Patch array 1×2 and added U-Slot. The desired antenna is designed on a substrate Rogers Duroid 5880 with a relative dielectric permittivity of 2.2 and its thickness is 1.575 mm. The simulation results show, its return loss is less than -10 dB in the frequency range of 27.5 - 29.5 GHz and its provides a wide bandwidth with 2.0 GHz and a unidirectional radiation pattern. Mutual coupling value is less than -20 dB for each element.
