Phongcharoenpanich, Chuwong

Preferred name

Alternative Name

PHONGCHAROENPANICH, Chuwong

Phongcharoenpanich, C.

Main Affiliation

School of Engineering

chuwong.ph@kmitl.ac.th

Now showing 1 - 10 of 345

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Electromagnetic wave scattering on 2D PEC cylinders using complex source point techniques and uniform geometrical theory of diffraction
(2010-07-30)
Lertwiriyaprapa, T.
;
Phaebua, K.
;
Phongcharoenpanich, C.
;
Krairiksh, M.
An analysis of the path loss in the durian orchard is presented by using the complex source point technique (CSP) and the uniform geometrical theory of diffraction (UTD). The 2D Gaussian beams (GBs) expansion scattered by 2D cylindrical structures are presented. The GB can be generated by using the CSP. The GBs expansion can provides an efficient way of the synthesis of the radiation pattern of the antenna. The cylindrical structures are preliminarily assumed to be a perfect electric conductor (PEC). The source (square patch antenna) is located on a durian. The CST-program uses to simulate the source pattern including the effect of durian for the UTD calculation. The CSP-UTD is applied to analyze the scattered fields from the cylindrical structures. The multi-path propagation and the path loss prediction in various aspects are then obtained. Also, the exact solution of the CSP scattered by a cylindrical is used to compare the UTD results. The good agreements are obtained in this work.
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Circularly polarized unidirectional antenna using planar tennis shape structure
(2015-10-16)
Phongcharoenpanich, C.
;
Boonying, K.
This paper presents the study and the design of the circularly polarized reader antenna with a tennis ball-shaped radiating plate operating at the universal UHF band (860-960 MHz). The proposed antenna is excited by a capacitively coupled feed technique to enhance S<inf>11</inf>. The tennis ball-shaped radiating plate can be generated a circularly polarized radiation. The simulation is studied effect of the parameters of the proposed antenna for cover the universal UHF RFID band. The prototype antenna is achieved, S<inf>11</inf> cover the frequency between 837.60 to 966.20 MHz, the 3-dB axial ratio (AR) bandwidth cover the frequency from 850.60 to 963.50 MHz, a unidirectional radiation pattern and an average gain 6.18 dBic, respectively.
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Dual-Band CP Metasurface-Array Antenna with Sequential-Phase Feed Network for C-Band Operation
(2026-01-01)
Kakhong, Khwanlada
;
Phaebua, Kittisak
;
Phongcharoenpanich, Chuwong
;
Supreeyatitikul, Nathapat
This paper presents a four-cluster dual-band circularly polarized (CP) metasurface (MTS)-array antenna integrated with a sequential-phase feed (SPF) network for C-band applications. The antenna is implemented on dual-layer FR-4 substrates, incorporating both big- and small-sized MTS-array elements per cluster, with a tilted square-slot ground plane and microstrip-line feed. The SPF network excites each cluster with equal amplitude and 90<sup>°</sup> phase shifts, significantly enhancing return loss bandwidth (RLBW), axial ratio bandwidth, and realized gain. The simulated results demonstrate RLBW of 3.08 - 4.51 GHz and 4.94 - 8 GHz, and ARBWs of 3.08 - 4.66 GHz and 5.27 - 6.42 GHz for the lower and higher operating bands, respectively. The corresponding highest RHCP gains are 6.15 dBic at 3.8 GHz and 4 dBic at 6 GHz. The proposed antenna design achieves bi-directional radiation patterns and shows substantial performance improvements over conventional dual-band CP MTS-array antennas.
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An eight-branch folded strip antenna with a circular parasitic patch on circular ground plane for SDARS application
(2009-11-16)
Phaebua, Kittisak
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Phongcharoenpanich, Chuwong
;
Torrungrueng, Danai
;
Surittikul, Nuttawit
;
Villarroel, Wladimiro
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Polarization switchable flat antenna for WLAN applications
(2014-01-01)
Phongcharoenpanich, C.
;
Boonying, K.
Polarization switchable flat antenna for WLAN applications operated at the center frequency of 2.45 GHz. The proposed antenna consists of the square flat structure, three switches (six P-I-N diodes), transmission-line phase shifters of 0 and 90 degrees. The antenna can be switched between 5 different states: vertical, horizontal and slant polarizations for linear polarization (LP), left-handed circular polarization (LHCP) and right-handed circular polarization (RHCP) by controlling the DC bias of 5 V and the current of 16 mA for the P-I-N diodes. The simulated and measured results show that the proposed antenna can cover the impedance bandwidth from 2.400 GHz to 2.484 GHz and good axial ratio for the circular polarization.
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A compact dual-band circular monopole antenna with partial ground plane for 2.45/5.5 GHz WLAN applications
(2019-03-01)
Lamultree, Suthasinee
;
Jansri, Chalee
;
Phongcharoenpanich, Chuwong
In this paper, a compact dual-band antenna for 2.45/5.5 GHz WLAN applications is presented. Geometry of a presented antenna consists of a circular-slot printed on a circular monopole with a partial ground plane, operated at 2.45 GHz and 5.5 GHz bands, respectively. It is constructed by using FR-4 substrates with ϵ<inf>r</inf> of 43 and 0.035 mm copper layer thickness. This antenna is compact with a size of 70 mm×80 mm×1.6 mm, and it is capable to easily integrate with other circuits. It is shown that this proposed antenna wholly covers the required bandwidths ranging from 2.4-2.485 GHz and 5.15-5.825 GHz with desirable radiation characteristics and magnitude of S<inf>11</inf> better than -10dB. To verify the simulation, an antenna prototype was made up and measured. Obviously, the simulation results are in well acceptance with the measured one.
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A rectangular aperture antenna fed by planar plate monopole for UWB applications
(2007-12-01)
Buttachin, Rungrod
;
Phongcharoenpanich, Chuwong
This paper presents the rectangular aperture antenna fed by planar plate monopole for ultra-wideband applications. Various wireless communication systems are operated at different frequencies. Thus, antenna which is capable for application in broadband is studied. The proposed antenna can be fulfilled the application requirement as mentioned above. According to its benefits, low cost and compact size are desired. In addition, the geometry antenna is easy. This proposed antenna radiates unidirectional pattern. In order to design the antenna, the parametric study is also discussed in this paper to determine the suitable parameter with desired characteristics such as impedance characteristic and radiation pattern. It is not easy for design the antenna with both desired unidirectional pattern and very wide bandwidth. From the simulation, at the frequency of UWB spectrum of 3.1 GHz, 7.0 GHz and 10.6 GHz, the gains equal to 4.33 dBi, 7.42 dBi and 5.58 dBi, respectively. The front-to-back ratios of 3.1 GHz, 7.0 GHz and 10.6 GHz equal to 3.70 dB, 17.53 dB and 29.38 dB, respectively. The measured and simulated result of return loss is lower than 10 dB at frequency of UWB communication system.
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Design of a novel dual-loop gate antenna for radio frequency identification (RFID) systems at low frequency band
(2010-05-24)
Kawdungta, S.
;
Phongcharoenpanich, C.
;
Torrungrueng, D.
In this paper, a dual-loop gate antenna is designed to generate the magnetic field distribution in various directions. It is applied to Radio Frequency Identification (RFID) systems for animal identification operating at the low frequency (LF) band of 125kHz and 134.2kHz. The percentage of volume of magnetic field intensity is introduced and used as a figure of merit in the design. The optimum antenna parameters are also designed by the genetic algorithm (GA) in conjunction with the Numerical Electromagnetic Code (NEC). The prototype antenna was fabricated and tested to confirm the antenna performance in the LF-RFID system for animal identification. It is found that the dual-loop gate antenna can be efficiently used in the LF-RFID system.
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Compact split circular ring shape dual-band antenna with open ring and additional strip
(2016-09-06)
Chawanonphithak, Yuktitath
;
Phongcharoenpanich, Chuwong
A dual-band antenna designed at the wireless local area network (WLAN) and worldwide interoperability for microwave access (WiMAX) bands is presented compact split circular ring shape dual-band antenna with open ring and addition strip. Its size is compact by the recondition circular ring shaped resonator connected. The antenna is fabricated onto a printed circuit board (PCB) on FR-4 substrate and the relative permittivity of 4.4, an overall size of 23 mm × 30 mm × 0.8 mm. This antenna can easily adjusted with open ring and strip to match impedance using a 50 ohm transmission line with SMA connector. The measured results show that the compacted antenna achieves a dual-band operating bandwidth from 2.38 GHz to 2.56 GHz and 4.66 GHz to 7.29 GHz for 11 S below -10 dB and the antenna yields omnidirectional patterns. The measured gains of the antenna from 2.45 and 5.5 GHz frequencies are 1.55 dBi and 3.2 dBi, respectively.
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Compact flat monopole antenna for small aircraft of VHF communication system
(2012-11-26)
Wongsakulphasatch, P.
;
Phongcharoenpanich, C.
;
Kawdungta, S.
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. © 2012 IEEE.

Phongcharoenpanich, Chuwong

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