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Design, Build and Test of planar antennae

Ayimba, Constantine Ochieng LU (2016) EITM02 20161
Department of Electrical and Information Technology
Abstract
Planar antennae have become very popular owing to their relative ease of
manufacture and unobtrusive nature (they are conformal to surfaces) especially
with regard to certain devices such as smart phones, watches and
fitness gadgets. Although the fractional bandwidth of planar antennae is
small, the actual bandwidth in absolute terms is high owing to the higher
centre frequencies used and proves useful for these applications.
The department of Electrical and Information Technology at Lund University
has acquired an LPKF™ ProtoLaser U3 prototyping machine for
the purpose of fabricating planar antennae for various research applications.
This work reviews the process required to create reliable antennae
using this machine and posits... (More)
Planar antennae have become very popular owing to their relative ease of
manufacture and unobtrusive nature (they are conformal to surfaces) especially
with regard to certain devices such as smart phones, watches and
fitness gadgets. Although the fractional bandwidth of planar antennae is
small, the actual bandwidth in absolute terms is high owing to the higher
centre frequencies used and proves useful for these applications.
The department of Electrical and Information Technology at Lund University
has acquired an LPKF™ ProtoLaser U3 prototyping machine for
the purpose of fabricating planar antennae for various research applications.
This work reviews the process required to create reliable antennae
using this machine and posits important criteria that should be considered.
The Frequency Domain Solver in the Microwave Studio package of the
Computer Simulation Toolkit(CST) has been employed in the design and
simulation of self resonant antennae at 5.2 GHz, 15 GHz and 28 GHz. The
frequency response of the reflection coefficient of a fabricated antenna was
found to be in good agreement with simulations if the substrate's dielectric
constant and loss tangent was properly modelled in the simulations. The
measured responses of fairly intricate designs were found to deviate more
from simulations compared to simple designs. (Less)
Popular Abstract
Patch or planar antennae have become increasingly popular for use in many applications as they are cheap to manufacture and can be easily incorporated into the circuitry of many devices.This work explores the processes required to produce reliable planar antennae. Designs of antennae are simulated using spe-cialised software to predict their behaviour. The best performing designs are then supplied to a laser milling machine for manufacture. Measurements on the manufactured antennae are compared with initial predictions to assess the dependability of the processes and make recommendations.
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author
Ayimba, Constantine Ochieng LU
supervisor
organization
course
EITM02 20161
year
type
H2 - Master's Degree (Two Years)
subject
keywords
antennas, Laser milling, LPKF, Patch antennas, antenna
report number
LU/LHT-EIT 2016-515
language
English
id
8882608
date added to LUP
2016-06-21 08:27:46
date last changed
2016-06-21 14:38:14
@misc{8882608,
  abstract     = {Planar antennae have become very popular owing to their relative ease of
manufacture and unobtrusive nature (they are conformal to surfaces) especially
with regard to certain devices such as smart phones, watches and
fitness gadgets. Although the fractional bandwidth of planar antennae is
small, the actual bandwidth in absolute terms is high owing to the higher
centre frequencies used and proves useful for these applications.
The department of Electrical and Information Technology at Lund University
has acquired an LPKF™ ProtoLaser U3 prototyping machine for
the purpose of fabricating planar antennae for various research applications.
This work reviews the process required to create reliable antennae
using this machine and posits important criteria that should be considered.
The Frequency Domain Solver in the Microwave Studio package of the
Computer Simulation Toolkit(CST) has been employed in the design and
simulation of self resonant antennae at 5.2 GHz, 15 GHz and 28 GHz. The
frequency response of the reflection coefficient of a fabricated antenna was
found to be in good agreement with simulations if the substrate's dielectric
constant and loss tangent was properly modelled in the simulations. The
measured responses of fairly intricate designs were found to deviate more
from simulations compared to simple designs.},
  author       = {Ayimba, Constantine Ochieng},
  keyword      = {antennas,Laser milling,LPKF,Patch antennas,antenna},
  language     = {eng},
  note         = {Student Paper},
  title        = {Design, Build and Test of planar antennae},
  year         = {2016},
}