KMITL

Permanent URI for this communityhttps://dspace.kmitl.ac.th/handle/123456789/1

Browse

Settings

Has files: NoSubject: search.filters.subject.Compact antenna

Search Results

Now showing 1 - 3 of 3
  • Loading...
    Thumbnail Image
    Some of the metrics are blocked by your 
    consent settings
    Item type:Publication,
    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.
  • Loading...
    Thumbnail Image
    Some of the metrics are blocked by your 
    consent settings
    Item type:Publication,
    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.
  • Loading...
    Thumbnail Image
    Some of the metrics are blocked by your 
    consent settings
    Item type:Publication,
    Compact dual-band I-shaped patch antenna with longitudinal strip on inverted-T ground plane
    (2014-01-01)
    Chawanonphithak, Yuktitath
    ;
    Phongcharoenpanich, Chuwong
    This paper presents a compact dual-band I-shaped patch antenna with longitudinal strip on inverted-T ground plane for wireless local area network (WLAN) applications over the frequency band of 2.400-2.484 GHz and 5.150-5.350 GHz. The I-shaped patch antenna and inverted-T ground plane are etched onto a piece of printed circuit board (PCB) with an overall size of 40 mm × 60 mm × 1.6 mm. It is excited by strip line to match impedance with a 50 ω transmission line. The measured results show that the miniaturized antenna achieves a broad operating bandwidth of 2.26-2.89 GHz and 4.92-5.83 GHz for S<inf>11</inf><-10 dB and omnidirectional radiation pattern. The measured gains of the antenna at 2.4 GHz and 5.2 GHz frequencies are 1.90 dBi and 3.45 dBi, respectively. © 2014 IEEE.