Phongcharoenpanich, Chuwong
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Phongcharoenpanich, Chuwong
Alternative Name
PHONGCHAROENPANICH, Chuwong
Phongcharoenpanich, C.
Main Affiliation
Email
chuwong.ph@kmitl.ac.th
13 results
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Item type:Publication, Conceivable Design of a Wideband Unidirectional Antenna using Truncated Microstrip Patches for S-Band Applications(2025-01-01) - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Inverted l-shaped cp patch antenna with corner-truncated partial ground plane diagonally adjoined with square branch for l-band applications(2021-02-02) - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Broadband circularly polarized microstrip patch antenna using circular artificial ground structure and meandering probe(2020-01-01); ; Fukusako, TakeshiTo enhance axial ratio (AR) bandwidth, this research proposes a circularly polarized (CP) single-fed microstrip patch antenna using a circular artificial ground structure (AGS) and meandering probe. To achieve broader AR bandwidth, the circular AGS is populated with rectangular unit cells and partially cut unit cells along the circular contour, while the meandering probe is used to improve the impedance bandwidth. Simulations are performed and results compared with that of conventional rectangular-AGS antenna. The simulation results show that the circular-AGS antenna, given 62 mm circular ground plane, achieves broader impedance (5.12 - 9.00 GHz and 54%), AR (5.21 - 8.27 GHz and 45%) and gain bandwidths (3.85 - 7.00 GHz and 58.06%), in comparison with the rectangular-AGS antenna (4.50 - 7.45 GHz and 49%; 4.52 - 7.42 GHz and 21%; and 4.00 - 6.80 GHz and 51.58% for impedance, AR and gain bandwidths). The circular-AGS antenna is capable of converting linear polarization in the off-axial ratio band into circular polarization. To verify, a circular-AGS antenna prototype is fabricated and experiments undertaken. The experimental impedance, AR and gain bandwidths of the circular-AGS antenna are 47.82% (5.17 - 8.42 GHz), 43.81% (5.24 - 8.17 GHz) and 60.74% (3.75 - 7.00 GHz). The proposed circular-AGS antenna can achieve broader AR bandwidth and is thus ideal for broadband CP applications. The novelty of this research lies in the use of circular AGS to effectively enhance AR bandwidth, as opposed to rectangular AGS which is conventionally used in CP polarizers. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Corner-truncated patch antenna with parasitic elements and circular feed slot for S-band CubeSat applications(2025-12-01); Torrungrueng, DanaiThis study presents a corner-truncated patch antenna with symmetrically loaded parasitic elements and a circular feed slot designed for CubeSat S-band communication applications. The antenna design evolves through successive stages, integrating corner truncations, a slit-ring structure, and segment-circular parasitic patches to enhance impedance matching and polarization performance. In its final configuration, a dual-stacked arrangement with inter-substrate spacing and a vertical capacitive feed further improves current distribution symmetry and broadens the operational bandwidth. Parametric analysis validates the effectiveness of each antenna design refinement, demonstrating improvements in impedance bandwidth, axial ratio bandwidth, and gain performance. The fabricated prototype achieves a wide impedance bandwidth from 1.65 GHz to 2.70 GHz, fully encompassing the CubeSat uplink (2.025–2.110 GHz) and downlink (2.200–2.290 GHz) frequency ranges. It maintains an axial ratio below 3 dB across 1.97 GHz to 2.32 GHz, ensuring efficient circular polarization. Additionally, a stable gain of approximately 7.50 dBic at 2.025 GHz supports reliable communication with ground stations. The combination of compact structure, low profile, and wideband circular polarization makes the proposed antenna a promising candidate for CubeSat communication systems. The novelty of this research lies in the integration of a corner-truncated patch, symmetrically loaded segment-circular parasitic elements, and a circular slit-ring capacitive feed within a dual-stacked substrate configuration to achieve wideband circular polarization and stable unidirectional radiation. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Design of circularly polarized and electrically small antenna with omnidirectional radiation pattern(2014-12-01); Fukusako, TakeshiThis paper presents an electrically small and circularly polarized antenna with an omnidirectional radiation pattern. The antenna consists of a horizontal loop element enclosed by two U-shaped elements and a vertical element from the feeding point. The radiation pattern of the circular polarization is omnidirectional and has a maximum gain of -2 dBic in parallel to the ground plane at the 900 MHz band. The antenna dimensions are 48 × 20 × 13.8mm (0.14 λ × 0.06 λ × 0.04 λ) with ka = 0.476 (i.e. < 0.5), where k is the wavenumber at the resonant frequency and a is the radius of a sphere surrounding the antenna. The dimension corresponds to the definition of an electrically small antenna. The omnidirectional circularly polarized pattern of a prototype antenna shows good agreement with that of the simulation. In addition, this paper introduces a mechanism that generates omnidirectional circular polarization from electrically small antennas. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Circularly polarized UHF-RFID antenna using defected rectangular plate on the ground plane(2012-11-26); Dentri, SitthichaiThis paper presents a UHF-RFID reader antenna radiating circular polarization with unidirectional pattern. The antenna structure consists of two plates. The upper plate acted as radiating element contains notched rectangular plate, rectangular aperture and slot line. The lower plate is the ground plane. The parametric study is carried out to achieve the frequency response of 920-925 MHz according to Thailand standard of UHF-RFID system. The prototype antenna was fabricated and measured. The simulated half-power beamwidth (HPBW) in E- and H-planes are 65 and 68 degree, respectively. The measured HPBW in both planes is identical to 55 degree. The simulated and measured bandwidths are 7.26% and 10.7%, respectively. The simulated and measured axial ratios at 922.5 MHz are 0.64 dB and 0.09 dB, respectively. © 2012 IEEE. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Investigations of Radiation Characteristics of a circularly polarized conical beam spherical slot array antenna(1999-01-01); ; Takada, Jun IchiThis paper presents the radiation characteristics of a circularly polarized conical beam spherical slot array antenna for applying to the mobile satellite communication subscriber. The structure of the antenna is easy to fabricate i.e., a ring of perpendicular slot pairs cut on an outer surface of a concentric conducting spherical cavity enclosed by the conducting conical surface with the simple feeding structure, and a linear electric probe excited at the center of the inner surface of the cavity. Radiation fields of a spherical slot array antenna are calculated by superposing the patterns of all the slots. From the numerical results of the radiation pattern, in both elcvational and azimuthal planes, it is obvious that the conical beam is realized. The elevational beam direction is low, which is suitable for installing in the land mobile subscriber unit located far from the equator. The tracking system is not necessary because the azimuthal pattern is omnidirectional. Directivity of the antenna for various spherical radii and angles of slot positions are illustrated as the guidelines for the design. Experimental results are in good agreement with the predictions. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Investigations of a Circularly Polarized Slotted Corner-Truncated Microstrip Patch Antenna with Split-Ring AMC Reflector(2025-01-01) - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Parametric study of a circularly polarized planar antenna for reader of UHF RFID system(2007-12-01); This paper presents the design of circularly polarized elliptical patch antenna (EPA) that radiates unidirectional beam. A circularly polarized patch antenna was investigated for the reader of the Radio Frequency Identification (RFID) at Ultra High Frequency (UHF) band. The center frequency is 923 MHz with the bandwidth from 920 MHz to 925 MHz. The antenna structure is simple because we use the single feed for circular polarization. The prototype antenna was fabricated to measure the antenna characteristics. The pattern is unidirectional pattern with directivity of 8.93 dBi and axial ratio of 1.88 dB at the center frequency. The obtained bandwidth is 15 MHz. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Analysis and design of circularly polarized capacitively-fed planar suspended antenna for universal UHF RFID applications(2020-01-01)