C. Phongcharoenpanich

King Mongkut's Institute of Technology Ladkrabang, Krung Thep, Bangkok, Thailand

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Publications (140)17.89 Total impact

  • Sanchai Eardprab, Chuwong Phongcharoenpanich, Danai Torrungrueng
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    ABSTRACT: The proposed antenna is a circular microstrip structure excited by four feeds and suspended with artificial magnetic conductors (AMCs). The multifeed circular microstrip antennas can generate a high circularly polarized performance by using a different feed arrangement. AMC structures with a square, circular, or octagonal patch on a unit cell are designed and applied to circular microstrip patch antennas for the enhancement of antenna performance. It is found that simulated results of the proposed antenna are well suited. The properties of wide beamwidth with good axial ratio can be achieved when applying the proposed AMC structures to circular microstrip antennas. The antenna prototype was fabricated to validate simulated results.
    International Journal of Antennas and Propagation 08/2013; 2013. · 0.68 Impact Factor
  • C. Phongcharoenpanich, K. Boonying, S. Kosulvit
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    ABSTRACT: This paper presents the study and the design of the rectenna (antenna integrated with rectifying circuit) operating at the WLAN band of 2.45 GHz. The polarization diversity antenna fed by two linear electric probes is chosen for receiving RF power from the WLAN. The isolation of the proposed polarization diversity antenna is improved by inserting an annular rectangular-ring slot on the radiating plate. The obtained result of isolation the antenna is higher than 30 dB. The Experimental of the characteristics radiation patterns are obtained the cross polarization level lower than is 20 dB, a unidirectional beam and a maximum gain is higher than 7 dBi. The rectifying circuit is used voltage double diode with open stub matching circuit. The results of rectifying circuit found that the DC power is higher than 100 mV at -20 dBm. The measured results of the rectenna is the RF power to DC power conversion at the distance less than 1 m.
    Antennas and Propagation in Wireless Communications (APWC), 2013 IEEE-APS Topical Conference on; 01/2013
  • S. Kawdungta, C. Phongcharoenpanich, D. Torrungrueng
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    ABSTRACT: In this paper, an efficient hybrid method is proposed for solving electrically large planar dipole antenna arrays in free space. The hybrid method appropriately combines the multiple sweep method of moments (MSMM) and conjugate gradient (CG) method, called hybrid MSMM/CG method, yielding better convergence rate compared with the conventional MSMM and CG method. Two examples of 21× 21 uniform and 24× 24 non-uniform planar dipole antenna arrays are analyzed. Results show that the hybrid MSMM/CG method converges rapidly compared to the conventional methods. In addition, the current distributions and radiation patterns computed by using the hybrid MSMM/CG method are in excellent agreement with those obtained from the standard method of moments (MM). It is found that the hybrid MSMM/CG method is very efficient and accurate for electrically large planar dipole antenna arrays in free space.
    Journal of Electromagnetic Waves and Applications 04/2012; 25(2):189-202. · 1.40 Impact Factor
  • P. Wongsiritorn, T. Lertwiriyaprapa, C. Phongcharoenpanich, K. Phaebua
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    ABSTRACT: In this paper, the simulation of radiation pattern of the proposed RFID C-slot tag antenna on a coated metallic cylindrical surface is presented. It is found that the radiation pattern in the shadow zone (behind the product) from the proposed RFID tag is stronger than that from the electric current source case (electric tag). Thus, the proposed C-slot tag antenna is useful for the RFID application especially for the curved metallic surface product.
    Wireless Information Technology and Systems (ICWITS), 2012 IEEE International Conference on; 01/2012
  • S. Kawdungta, D. Torrungrueng, C. Phongcharoenpanich
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    ABSTRACT: In this paper, the multiple sweep method of moments (MSMM) is employed to design non-uniform planar dipole antenna arrays in free space, where the genetic algorithm (GA) is integrated with the MSMM to find optimum array parameters. The antenna design is focused on parameters of non-uniform planar dipole antenna arrays, which are the length of each element, spacing between elements, and the feeding voltage of each element. Numerical results are presented to demonstrate the accuracy and efficiency of the MSMM/GA method for non-uniform planar dipole antenna arrays in free space.
    Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE; 01/2012
  • Source
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    ABSTRACT: This paper presents an ultra-wideband (UWB) rectangular ring antenna excited by a circular disc monopole (CDM) with a conducting rod and two double ridges to radiate bidirectional pattern with constant beam direction along the entire UWB frequency range of 3.1–10.6 GHz. The conducting rod and double ridges at the upper wall of the ring are added to solve the tilted beam problem at the higher edge frequency whereas the double ridges at the lower wall are used to enhance the impedance bandwidth. The dimensions of the rectangular ring and the CDM are initially considered to achieve the bidirectional pattern with the suitable resonant frequencies and bandwidth. Then, the parameters of copper rod and two double ridges are determined by parametric study using CST Microwave Studio simulation software. The prototype antenna was fabricated, and the measured results show good agreement with the simulated ones. The obtained bandwidth of |S 11 | < −10 dB can cover the UWB frequency range as well as the bidirectional beam radiation with constant beam direction (θ = 0 • , 180 • and φ = 90 •). The minimum and maximum measured gains are 3.1 dBi to 5.3 dBi, respectively. The proposed antenna possesses compact size with good radiation performance that can be a promising candidate for UWB applications.
    International Journal of Microwave Science and Technology 01/2012; 12.
  • P. Wongsakulphasatch, C. Phongcharoenpanich, S. Kawdungta
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    ABSTRACT: This paper presents the design of compact flat monopole antenna for the small aircraft of VHF communication system. It can operate along the wide frequency band without the matching circuit that make itself compact size. From the simulation results, the proposed antenna has a frequency range between 112 and 130 MHz. It yields an omnidirectional pattern with a linear polarization. The simulated gain is 1.88 dBi. The prototype antenna was fabricated and tested with the VHF aircraft communication system. It has sufficient characteristics for the VHF communication system. It is found that this antenna can be efficiently used for the small aircraft.
    Antennas and Propagation (APCAP), 2012 IEEE Asia-Pacific Conference on; 01/2012
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    ABSTRACT: The radio frequency identification (RFID) tags are proposed to be employed as remotely read dielectric-property sensors to determine qualities of some construction material products (CMPs); e.g., light weight concrete (LWC), mortar specimens and concrete. This paper presents a study of the characteristics of an RFID tag mounted at several locations on the LWC. The numerical simulations are performed using the CST Microwave Studio to study effects of tag, where the folded dipole with an inductive loop tag antenna is used. Results show that locations of an RFID tag on LWC affects the tag antenna characteristics such as input impedance, gain and radiation pattern.
    Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON), 2012 9th International Conference on; 01/2012
  • K. Phaebua, C. Phongcharoenpanich, T. Lertwiriyaprapa
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    ABSTRACT: This paper presents an accuracy of a modified UTD solution for a convex impedance cylinder based on the general 3D UTD solution for a smooth convex perfectly electric conductor (PEC) scattering problem. By employing the impedance boundary condition (IBC), the modified UTD solution for a convex impedance cylinder can be used for the material-coated PEC cylinder problem. Thus, the modified UTD solution for a convex impedance cylinder surface requires the surface impedance value (ZS). In this paper, the study of the limitation of approximated closed form of ZS is presented. The thickness of thin material-coated PEC cylinder will be investigated in terms of the ratio of material-coated thickness to radius of the cylinder. The mean squared error (MSE) between the modified UTD results and the reference results obtained from CST-Microwave Studio program is performed to investigate limitation of closed form of ZS. The relative permittivity εr of a material-coated PEC cylinder in this paper is fixed to 4. The modified UTD solution result shows good agreement with the CST-Microwave Studio commercial software for the dielectric-coated thickness up to d/a ≤0.07 or d≤0.14λ for a=2λ.
    Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON), 2012 9th International Conference on; 01/2012
  • C. Phongcharoenpanich, K. Boonying, S. Kosulvit, T. Laohapensaeng
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    ABSTRACT: This paper presents the design of the dual-band flat antenna operating at 2.45 GHz and 5.25 GHz. This antenna is designed for polarization diversity of wireless LAN application (IEEE 802.11 a/b/g/n). The antenna is operated at dual-band with dual-polarization capability. The prototype flat antenna consists of a plate, a T-step slot, a rectangular slot, a rectangular ring strip, an air gap and a ground plane. The simulation process is done by using the CST Microwave Studio software. The results show the isolations higher than 15 dB that is satisfied the system requirement. The flat antenna is designed to obtain the unidirectional radiation pattern. The maximum gain is higher than 7 dBi.
    Antennas and Propagation in Wireless Communications (APWC), 2012 IEEE-APS Topical Conference on; 01/2012
  • T. Pumpoung, P. Wongsiritorn, C. Phongcharoenpanich, S. Kosulvit
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    ABSTRACT: The meander line tag antenna with T-Loop structure is presented for Radio Frequency Identification (RFID) system according to the national standard of UHF RFID along the frequency range of 920-925 MHz. The size of the proposed tag antenna is approximately 88 mm × 10 mm, and it is designed by using NXP G2XL IC chip in TSSOP8 package with the impedance of 16.08-j148.7 Ω at the frequency of 922.5 MHz. The antenna characteristics such as impedance characteristics and radiation pattern are analyzed.
    Electron Devices and Solid State Circuit (EDSSC), 2012 IEEE International Conference on; 01/2012
  • C. Phongcharoenpanich, R. Pansomboon, T. Lertwiriyaprapa, S. Kawdungta
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    ABSTRACT: The fishing net antenna can efficiently achieve the good magnetic field distributions in the interested directions. The NEC in conjunction with the MATLAB is employed to determine the magnetic field distribution of fishing net antenna. Both the simulated and measured results show acceptable communication performance. It is found that the measured percentages of volume of fishing net antenna at d of 20.32 cm, l of 40.64 cm and h of 60.96 cm with the glass tag in the xdirection, y-direction and z-direction are 22.22%, 35.19% and 12.22% respectively. It is obvious that the fishing net antenna can be efficiently used in the actual system.
    Wireless Information Technology and Systems (ICWITS), 2012 IEEE International Conference on; 01/2012
  • K. Phaebua, T. Lertwiriyaprapa, C. Phongcharoenpanich, M. Krairiksh
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    ABSTRACT: In this paper, a Gaussian beam construction solution is presented based on the modified 3-D UTD scattering solution for impedance cylinder. The properties of cylinder surface are taken into account in this paper. The impedance surface value is approximated using material-coated flat surface approximation as presented.
    Antennas and Propagation (ISAP), 2012 International Symposium on; 01/2012
  • C. Phongcharoenpanich, B. Sricharoen
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    ABSTRACT: In this paper, a dual-band circularly polarized rectangular loop slot antenna with notched hexagonal aperture fed by a microstrip line has been optimized for the UHF and microwave RFID applications. It is obvious that the antenna radiates bi-directional beam with the measured HPBW of 82 degree in YZ-plane and 66 degree in XZ-plane at the center frequency of the UHF band. The measured HPBW in YZ-plane and XZ-plane at 2.45 GHz are 90 degree and 70 degree. The measured axial ratios at the center frequency of the UHF and the microwave band are 0.09 dB and 0.55 dB, respectively. The proposed antenna can be efficiently used as the reader antenna of the UHF and microwave RFID systems.
    Wireless Information Technology and Systems (ICWITS), 2012 IEEE International Conference on; 01/2012
  • C. Phongcharoenpanich, R. Senathong
    Antennas and Propagation (APCAP), 2012 IEEE Asia-Pacific Conference on; 01/2012
  • B. Luadang, C. Phongcharoenpanich, S. Kawdungta
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    ABSTRACT: In this paper, the parasitic printed monopole antenna is proposed for the VHF mobile communication. The parasitic monopole is added with the printed monopole to achieve a good impedance matching and desired gain. The simulated results show a good matching at the operating frequency. The obtained antenna gain is around 2 dBi with the omnidirectional radiation pattern. The prototype antenna was fabricated and tested to verify the theoretical predictions. It is apparent that this antenna can be a potential candidate for the VHF communication system.
    Antennas and Propagation (APCAP), 2012 IEEE Asia-Pacific Conference on; 01/2012
  • S. Kawdungta, C. Phongcharoenpanich, D. Torrungrueng
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    ABSTRACT: In this paper, the multiple sweep method of moments (MSMM) with the spectral acceleration (SA) algorithm and the genetic algorithm (GA) is proposed to design non-uniform spacing collinear dipole antenna arrays in free space. The SA algorithm is employed to accelerate the MSMM to be O(N), and the GA is incorporated to find optimum array parameters, where N is the total number of unknowns. Under this appropriate combination, numerical results are presented to demonstrate the accuracy and efficiency of the MSMM/SA/GA method for electrically large non uniform spacing collinear dipole antenna arrays in free space. It is found that the MSMM/SA/GA method provides more accurate radiation pattern than the pattern multiplication method. Moreover, the computational time and the memory storage requirement tend to be O(N) with the array increment in one direction.
    Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON), 2011 8th International Conference on; 06/2011
  • Supakit Kawdungta, Chuwong Phongcharoenpanich, Danai Torrungrueng
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    ABSTRACT: In this article, the multiple-sweep method of moments is employed to effectively analyze electromagnetic radiation problems of planar dipole antenna arrays in free space. Two sweeping procedures (row and sawtooth sweeps) associated with the multiple-sweep method of moments are proposed, and their obtained results are compared with those computed using the conventional conjugate gradient method. Two examples of a 5 × 5 uniform and a 24 × 24 nonuniform planar dipole antenna arrays are considered. It is found that the multiple-sweep method of moments with the sawtooth sweep overcomes the inefficiency of the original multiple-sweep method of moments with the row sweep, because the associated number of unknowns for each section of the row sweep is relatively large. In addition, the current distributions and radiation patterns computed by using the multiple-sweep method of moments with the sawtooth sweep are in excellent agreement with those obtained from the standard method of moments. Thus, the multiple-sweep method of moments with the sawtooth sweep is efficient and accurate for electrically large problems of planar dipole antenna arrays in free space.
    Electromagnetics 05/2011; 31(4):258-272. · 0.73 Impact Factor
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    ABSTRACT: This paper introduces an investigation of two-probe excited circular ring antenna with square reflector. The purpose of this investigation is to design a diversity unidirectional antenna that is operated at the center frequency of 5.5 GHz to cover the frequency range from 5.2 to 5.8 GHz following IEEE 802.11a standard. The Computer Simulation Technology (CST) Microwave Studio is used as the simulation tool for investigating the antenna characteristics such as the return loss, the isolation between two-probes, the radiation pattern and the gain. The simulated results of the return loss, the isolation between two-probes and the radiation pattern are presented. The antenna has a unidirectional pattern with maximum gain of 8.34 dBi. Moreover, the antenna provides a unidirectional pattern with front-to-back ratio better than 20 dB and the isolation between the two-probes better than 20 dB. The proposed antenna is useful for wireless local area network (WLAN) communication systems.
    01/2011;
  • T. Pumpoung, C. Phongcharoenpanich, S. Kosulvit
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    ABSTRACT: This paper proposes the UHF RFID tag antenna design for operation of the frequency band 920-925 MHz corresponding to the standard of UHF RFID in Thailand. The tag antenna fabrication from the thin FR4 substrate (cr = 4.3) with the thickness of substrate of 0.25 mm. The pattern of the tag antenna is omni-directional one. The tag antenna design is used rectangular loop matching technique for matching between the tag antennas with Ie chip with the impedance of 21.29-j191.7 n at the frequency of 922.5 MHz that is the center frequency. The meander line structure can be decrease the size of tag antenna to compact size.
    01/2011;

Publication Stats

198 Citations
17.89 Total Impact Points

Institutions

  • 1998–2013
    • King Mongkut's Institute of Technology Ladkrabang
      • Faculty of Engineering
      Krung Thep, Bangkok, Thailand
  • 2010
    • King Mongkut's University of Technology North Bangkok
      • Department of Teacher Training in Electrical Engineering
      Krung Thep, Bangkok, Thailand
  • 2008–2009
    • Asian University
      Krung Thep, Bangkok, Thailand
  • 2007
    • Nakhon Ratchasima Rajabhat University
      Khorat, Nakhon Ratchasima, Thailand
  • 2004
    • Burapha University
      • Department of Electrical Engineering
      Chon Buri, Changwat Chon Buri, Thailand