• Of aperture coupled microstrip antenna. However, this design is much better than proximity coupled microstrip antenna, which is giving only 15% impedance bandwidth, that to with a complicated π shaped stub. This design is also having advantage wide beam width. In no other feeding.
  • One of the useful features of the aperture coupled microstrip antenna is that it can provide substantially improved impedance bandwidth. While single layer probe fed element has limited impedance bandwidth of 2−5%, an aperture coupled element with modified slot is able to increase the impedance bandwidth 4.
  1. A New Aperture Coupled Microstrip Slot Antennas
  2. A New Aperture Coupled Microstrip Slot Antenna Combo

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2009 European Microwave Conference (EuMC)>1531 - 1534

Abstract

A new aperture-coupled circularly polarized microstrip antenna with F-shaped slot is proposed for wide beamwidth. The F-shaped slot is embedded at centre of the square microstrip patch on thin dielectric substrate and mounted on thick foam layer. A single aperture-coupled feed is placed at centre of the patch radiator with F-shaped slot to get the circular polarization (CP) operation. The measured performance of the proposed antenna is presented. The 3 dB AR bandwidth of 3.2% (2.17-2.24 GHz) with 5.62% (2.10-2.35 GHz) 10 dB return loss bandwidth is achieved.

Identifiers

The development of an aperture-coupled microstrip antenna using a meander line slot has been described. The use of a meander line slot loaded to the antenna patch in the proposed antenna configuration has been investigated and shows various advantages. It not only reduces the antenna dimension by the factor of 36%, but also widens. Aperture Coupled Microstrip Slot Antenna' International Journal of Electronics Engineering, 2(1), 2010, pp. 4 Zarreen Aijaz I& S.C.Shrivastava 'Techniques to Reduce the Back Lobe of Microstrip Slot Antennae' International Journal of Electronic Engineering Research. ISSN 0975 - 64S0, vol.

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Nasimuddin

  • RF & Opt. Dept., Inst. for Infocomm Res., Singapore, Singapore

Yong, Y.

  • Sch. of EEE, Nanyang Technol. Univ., Singapore, Singapore

Chen, Z.N.

  • RF & Opt. Dept., Inst. for Infocomm Res., Singapore, Singapore

Alphones, A.

  • Sch. of EEE, Nanyang Technol. Univ., Singapore, Singapore

Keywords

slot antennasantenna feedsaperture-coupled antennaselectromagnetic wave polarisationmicrostrip antennasloss 10 dBwide beamwidthaperture-coupled circularly polarized microstrip antenna F-shaped slotmicrostrip patchthin dielectric substratesingle aperture-coupled feedpatch radiatorbandwidth 2.17 GHz to 2.24 GHzMicrostrip antennaAperture-coupledSlotCircular polarization

slot antennasantenna feedsaperture-coupled antennaselectromagnetic wave polarisationmicrostrip antennasloss 10 dBwide beamwidthaperture-coupled circularly polarized microstrip antenna F-shaped slotmicrostrip patchthin dielectric substratesingle aperture-coupled feedpatch radiatorbandwidth 2.17 GHz to 2.24 GHzMicrostrip antennaAperture-coupledSlotCircular polarization

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2008 International Conference on Recent Advances in Microwave Theory and Applications>852 - 853

Abstract

Aperture coupled microstrip slot antenna couples the patch antenna with microstripline through an aperture. To improve the radiation pattern, there are three techniques -First using reflector plate, second using cavity and third by adjustment of the phase angle using the movement of the patch antenna on the slot i.e. by adjusting the SWR distribution. The third technique improves the radiation pattern without using reflector plate or cavity and it increases the F/B ratio. One effective way to increase the impedance bandwidth is to change the feed shape and the slot shape. The shape of coupling aperture has a great effect on the strength of coupling between the feed line and the patch. Mainly thin rectangular shape of the slot is used in aperture coupled microstrip slot antenna. If, it is chosen a suitable combination of the shapes of feed and slot and tuned perfectly, it gives an optimum impedance bandwidth with a stable radiation pattern.

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book ISBN : 978-1-4244-2690-4
book e-ISBN : 978-1-4244-2691-1
DOI 10.1109/AMTA.2008.4763142

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Aijaz, Z.

  • Dept. of Electron.&Commun., MANIT, Bhopal
A New Aperture Coupled Microstrip Slot Antenna

Shrivastava, S.C.

  • Dept. of Electron.&Commun., MANIT, Bhopal

Keywords

slot antennasantenna radiation patternsmicrostrip antennasmicrostrip linesreflector antenna feedsantenna feedaperture coupled microstrip slot antennapatch antennamicrostrip lineradiation patternreflector platecoupling apertureMicrostripAperturesShapeAntennas and propagation

A New Aperture Coupled Microstrip Slot Antennas

slot antennasantenna radiation patternsmicrostrip antennasmicrostrip linesreflector antenna feedsantenna feedaperture coupled microstrip slot antennapatch antennamicrostrip lineradiation patternreflector platecoupling apertureMicrostripAperturesShapeAntennas and propagation

A New Aperture Coupled Microstrip Slot Antenna Combo

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