A Wideband Resonant Cavity Antenna Assembled Using a Micromachined CPW Fed Patch Source and a Two-Layer Metamaterial Superstrate

Komsan Kanjanasit, Changhai Wang

Research output: Contribution to journalArticle

Abstract

This paper reports the development of a wideband resonant cavity antenna (RCA). The RCA device was obtained by using an optimized aperture coupled CPW (coplanar waveguide) fed wideband patch antenna and a metamaterial based superstrate design. The wideband behavior is based on the effects of Fabry-Perot cavity on either side of the resonant frequency of the metamaterial superstrate and the finite size of the superstrate to obtained enhanced gain around this frequency. In addition, the metamaterial superstrate in our work contains two identical layers of a frequency selective surface (FSS) based on a two dimensional patch array rather than dissimilar arrays as used in the previous studies. Two such FSS layers are assembled using a laser micromachined PMMA rim and a SU8 based bonding method. The air spacer based metamaterial design offers better performance by minimizing the dielectric loss between the metallic patch arrays and also offers flexibility in control of the separation between the two FSS layers as well as resulting in a light weight RCA device. The RCA device was designed to operate in the X-band. The dimensions of the compact RCA device are 45×45×24 mm3. The gain of the device was measured to be ~13 dBi with a 3-dB bandwidth of 46% and a corresponding 1-dBi-ripple bandwidth as wide as 40%. The measured impedance bandwidth was 44%.

Original languageEnglish
JournalIEEE Transactions on Components, Packaging and Manufacturing Technology
Early online date24 Sep 2018
DOIs
Publication statusE-pub ahead of print - 24 Sep 2018

Fingerprint

Cavity resonators
Coplanar waveguides
Metamaterials
Antenna feeders
Frequency selective surfaces
Antennas
Bandwidth
Polymethyl Methacrylate
Dielectric losses
Microstrip antennas
Natural frequencies
Lasers
Air

Keywords

  • Apertures
  • assembly
  • Broadband antennas
  • Coplanar waveguides
  • directive antennas
  • fabrication
  • gain bandwidth
  • Metamaterials
  • partially reflective surface (PRS)
  • Patch antennas
  • Resonant cavity antenna
  • Wideband
  • wideband antenna

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

Cite this

@article{1ce3fd7d4a3f4c3eb40d8978ea85d147,
title = "A Wideband Resonant Cavity Antenna Assembled Using a Micromachined CPW Fed Patch Source and a Two-Layer Metamaterial Superstrate",
abstract = "This paper reports the development of a wideband resonant cavity antenna (RCA). The RCA device was obtained by using an optimized aperture coupled CPW (coplanar waveguide) fed wideband patch antenna and a metamaterial based superstrate design. The wideband behavior is based on the effects of Fabry-Perot cavity on either side of the resonant frequency of the metamaterial superstrate and the finite size of the superstrate to obtained enhanced gain around this frequency. In addition, the metamaterial superstrate in our work contains two identical layers of a frequency selective surface (FSS) based on a two dimensional patch array rather than dissimilar arrays as used in the previous studies. Two such FSS layers are assembled using a laser micromachined PMMA rim and a SU8 based bonding method. The air spacer based metamaterial design offers better performance by minimizing the dielectric loss between the metallic patch arrays and also offers flexibility in control of the separation between the two FSS layers as well as resulting in a light weight RCA device. The RCA device was designed to operate in the X-band. The dimensions of the compact RCA device are 45×45×24 mm3. The gain of the device was measured to be ~13 dBi with a 3-dB bandwidth of 46{\%} and a corresponding 1-dBi-ripple bandwidth as wide as 40{\%}. The measured impedance bandwidth was 44{\%}.",
keywords = "Apertures, assembly, Broadband antennas, Coplanar waveguides, directive antennas, fabrication, gain bandwidth, Metamaterials, partially reflective surface (PRS), Patch antennas, Resonant cavity antenna, Wideband, wideband antenna",
author = "Komsan Kanjanasit and Changhai Wang",
year = "2018",
month = "9",
day = "24",
doi = "10.1109/TCPMT.2018.2870479",
language = "English",
journal = "IEEE Transactions on Components, Packaging and Manufacturing Technology",
issn = "2156-3950",
publisher = "IEEE",

}

TY - JOUR

T1 - A Wideband Resonant Cavity Antenna Assembled Using a Micromachined CPW Fed Patch Source and a Two-Layer Metamaterial Superstrate

AU - Kanjanasit, Komsan

AU - Wang, Changhai

PY - 2018/9/24

Y1 - 2018/9/24

N2 - This paper reports the development of a wideband resonant cavity antenna (RCA). The RCA device was obtained by using an optimized aperture coupled CPW (coplanar waveguide) fed wideband patch antenna and a metamaterial based superstrate design. The wideband behavior is based on the effects of Fabry-Perot cavity on either side of the resonant frequency of the metamaterial superstrate and the finite size of the superstrate to obtained enhanced gain around this frequency. In addition, the metamaterial superstrate in our work contains two identical layers of a frequency selective surface (FSS) based on a two dimensional patch array rather than dissimilar arrays as used in the previous studies. Two such FSS layers are assembled using a laser micromachined PMMA rim and a SU8 based bonding method. The air spacer based metamaterial design offers better performance by minimizing the dielectric loss between the metallic patch arrays and also offers flexibility in control of the separation between the two FSS layers as well as resulting in a light weight RCA device. The RCA device was designed to operate in the X-band. The dimensions of the compact RCA device are 45×45×24 mm3. The gain of the device was measured to be ~13 dBi with a 3-dB bandwidth of 46% and a corresponding 1-dBi-ripple bandwidth as wide as 40%. The measured impedance bandwidth was 44%.

AB - This paper reports the development of a wideband resonant cavity antenna (RCA). The RCA device was obtained by using an optimized aperture coupled CPW (coplanar waveguide) fed wideband patch antenna and a metamaterial based superstrate design. The wideband behavior is based on the effects of Fabry-Perot cavity on either side of the resonant frequency of the metamaterial superstrate and the finite size of the superstrate to obtained enhanced gain around this frequency. In addition, the metamaterial superstrate in our work contains two identical layers of a frequency selective surface (FSS) based on a two dimensional patch array rather than dissimilar arrays as used in the previous studies. Two such FSS layers are assembled using a laser micromachined PMMA rim and a SU8 based bonding method. The air spacer based metamaterial design offers better performance by minimizing the dielectric loss between the metallic patch arrays and also offers flexibility in control of the separation between the two FSS layers as well as resulting in a light weight RCA device. The RCA device was designed to operate in the X-band. The dimensions of the compact RCA device are 45×45×24 mm3. The gain of the device was measured to be ~13 dBi with a 3-dB bandwidth of 46% and a corresponding 1-dBi-ripple bandwidth as wide as 40%. The measured impedance bandwidth was 44%.

KW - Apertures

KW - assembly

KW - Broadband antennas

KW - Coplanar waveguides

KW - directive antennas

KW - fabrication

KW - gain bandwidth

KW - Metamaterials

KW - partially reflective surface (PRS)

KW - Patch antennas

KW - Resonant cavity antenna

KW - Wideband

KW - wideband antenna

UR - http://www.scopus.com/inward/record.url?scp=85054225806&partnerID=8YFLogxK

U2 - 10.1109/TCPMT.2018.2870479

DO - 10.1109/TCPMT.2018.2870479

M3 - Article

JO - IEEE Transactions on Components, Packaging and Manufacturing Technology

JF - IEEE Transactions on Components, Packaging and Manufacturing Technology

SN - 2156-3950

ER -