Design of millimetre-wave antennas on low temperature co-fired ceramic substrates: Master's thesis

Research output: ThesisMaster's thesisTheses

Abstract

In this work, implementation possibilities of millimetre-wave antennas fabricated with low temperature co-fired ceramic (LTCC) technology are investigated. Especially, microstrip antennas operating at 60 GHz frequency band are designed, modeled, manufactured and tested. LTCC is a modern packaging technology which enables manufacturing of multilayer components and modules with high performance up to millimetre-wave region. Benefits of the LTCC technology are high packaging density, low dielectric and conductor losses, reliability and stability. The challenges of the LTCC technology are related to the manufacturing tolerances which become critical for operation of the antennas at 60 GHz frequency band. In the literature review, the basics of antenna theory are presented and common antenna parameters are introduced. Issues related to antenna arrays are also introduced. Then, basic characteristics of microstrip antennas are presented, followed by the introduction of the LTCC technology. Several types of microstrip antennas are designed and modeled with numerical simulation software. Two types of antennas are also modeled with simulation code implemented by the author. The functionality of fabricated antennas is validated by conducting scattering parameter and radiation pattern measurements. Measurement results agree quite well with the simulated ones. Small deviations between simulated and measured results are caused by the differences in designed and realised dimensions of the antennas. Return loss of -10 dB or better is easily achieved. Impedance bandwidth of the antennas is in the order of 3...6%. Maximum absolute gains vary between 3...4 dB. It is clearly seen from the results that functional antennas can be fabricated with standard LTCC process and materials even for the 60 GHz frequency band.
Original languageEnglish
QualificationMaster Degree
Awarding Institution
  • Helsinki University of Technology
Place of PublicationEspoo
Publisher
Publication statusPublished - 2006
MoE publication typeG2 Master's thesis, polytechnic Master's thesis

Fingerprint

Millimeter waves
Antennas
Substrates
Microstrip antennas
Temperature
Frequency bands
Packaging
Scattering parameters
Directional patterns (antenna)
Antenna arrays
Multilayers
Bandwidth
Computer simulation

Keywords

  • low temperature co-fired ceramic
  • millimetre-waves
  • microstrip antennas
  • LTCC

Cite this

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title = "Design of millimetre-wave antennas on low temperature co-fired ceramic substrates: Master's thesis",
abstract = "In this work, implementation possibilities of millimetre-wave antennas fabricated with low temperature co-fired ceramic (LTCC) technology are investigated. Especially, microstrip antennas operating at 60 GHz frequency band are designed, modeled, manufactured and tested. LTCC is a modern packaging technology which enables manufacturing of multilayer components and modules with high performance up to millimetre-wave region. Benefits of the LTCC technology are high packaging density, low dielectric and conductor losses, reliability and stability. The challenges of the LTCC technology are related to the manufacturing tolerances which become critical for operation of the antennas at 60 GHz frequency band. In the literature review, the basics of antenna theory are presented and common antenna parameters are introduced. Issues related to antenna arrays are also introduced. Then, basic characteristics of microstrip antennas are presented, followed by the introduction of the LTCC technology. Several types of microstrip antennas are designed and modeled with numerical simulation software. Two types of antennas are also modeled with simulation code implemented by the author. The functionality of fabricated antennas is validated by conducting scattering parameter and radiation pattern measurements. Measurement results agree quite well with the simulated ones. Small deviations between simulated and measured results are caused by the differences in designed and realised dimensions of the antennas. Return loss of -10 dB or better is easily achieved. Impedance bandwidth of the antennas is in the order of 3...6{\%}. Maximum absolute gains vary between 3...4 dB. It is clearly seen from the results that functional antennas can be fabricated with standard LTCC process and materials even for the 60 GHz frequency band.",
keywords = "low temperature co-fired ceramic, millimetre-waves, microstrip antennas, LTCC",
author = "Antti Lamminen",
note = "diplomity{\"o}",
year = "2006",
language = "English",
publisher = "Helsinki University of Technology",
address = "Finland",
school = "Helsinki University of Technology",

}

Design of millimetre-wave antennas on low temperature co-fired ceramic substrates : Master's thesis. / Lamminen, Antti.

Espoo : Helsinki University of Technology, 2006. 118 p.

Research output: ThesisMaster's thesisTheses

TY - THES

T1 - Design of millimetre-wave antennas on low temperature co-fired ceramic substrates

T2 - Master's thesis

AU - Lamminen, Antti

N1 - diplomityö

PY - 2006

Y1 - 2006

N2 - In this work, implementation possibilities of millimetre-wave antennas fabricated with low temperature co-fired ceramic (LTCC) technology are investigated. Especially, microstrip antennas operating at 60 GHz frequency band are designed, modeled, manufactured and tested. LTCC is a modern packaging technology which enables manufacturing of multilayer components and modules with high performance up to millimetre-wave region. Benefits of the LTCC technology are high packaging density, low dielectric and conductor losses, reliability and stability. The challenges of the LTCC technology are related to the manufacturing tolerances which become critical for operation of the antennas at 60 GHz frequency band. In the literature review, the basics of antenna theory are presented and common antenna parameters are introduced. Issues related to antenna arrays are also introduced. Then, basic characteristics of microstrip antennas are presented, followed by the introduction of the LTCC technology. Several types of microstrip antennas are designed and modeled with numerical simulation software. Two types of antennas are also modeled with simulation code implemented by the author. The functionality of fabricated antennas is validated by conducting scattering parameter and radiation pattern measurements. Measurement results agree quite well with the simulated ones. Small deviations between simulated and measured results are caused by the differences in designed and realised dimensions of the antennas. Return loss of -10 dB or better is easily achieved. Impedance bandwidth of the antennas is in the order of 3...6%. Maximum absolute gains vary between 3...4 dB. It is clearly seen from the results that functional antennas can be fabricated with standard LTCC process and materials even for the 60 GHz frequency band.

AB - In this work, implementation possibilities of millimetre-wave antennas fabricated with low temperature co-fired ceramic (LTCC) technology are investigated. Especially, microstrip antennas operating at 60 GHz frequency band are designed, modeled, manufactured and tested. LTCC is a modern packaging technology which enables manufacturing of multilayer components and modules with high performance up to millimetre-wave region. Benefits of the LTCC technology are high packaging density, low dielectric and conductor losses, reliability and stability. The challenges of the LTCC technology are related to the manufacturing tolerances which become critical for operation of the antennas at 60 GHz frequency band. In the literature review, the basics of antenna theory are presented and common antenna parameters are introduced. Issues related to antenna arrays are also introduced. Then, basic characteristics of microstrip antennas are presented, followed by the introduction of the LTCC technology. Several types of microstrip antennas are designed and modeled with numerical simulation software. Two types of antennas are also modeled with simulation code implemented by the author. The functionality of fabricated antennas is validated by conducting scattering parameter and radiation pattern measurements. Measurement results agree quite well with the simulated ones. Small deviations between simulated and measured results are caused by the differences in designed and realised dimensions of the antennas. Return loss of -10 dB or better is easily achieved. Impedance bandwidth of the antennas is in the order of 3...6%. Maximum absolute gains vary between 3...4 dB. It is clearly seen from the results that functional antennas can be fabricated with standard LTCC process and materials even for the 60 GHz frequency band.

KW - low temperature co-fired ceramic

KW - millimetre-waves

KW - microstrip antennas

KW - LTCC

M3 - Master's thesis

PB - Helsinki University of Technology

CY - Espoo

ER -