Fabrication and characterization of micromachined rectangular waveguide components for use at millimeter-wave and terahertz frequencies

Digby, J.; McIntosh, C.E.; Parkhurst, G.M.; Towlson, Brian; Hadjiloucas, Sillas; Bowen, James; Chamberlain, J.M.; Pollard, R.D.; Miles, R.E.; Steenson, D.P.; Karatzas, L.S.; Cronin, N. J.; Davies, S. R.

doi:10.1109/22.859472

Cited by 91 publications

(39 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In another sequence of measurements, the timedomain signatures for four lengths of G-band (140-220 GHz) 1300 m ϫ 80 m micromachined 21 reducedheight waveguide were recorded [ Fig. 2(b)] after sequentially placing them at the test port of the interferometer with the alignment procedure described earlier.…”

Section: Methodsmentioning

confidence: 99%

“…Such results are also in good agreement with the high-quality surface finish observed in TEM pictures. 21 It is worth noting that most recently, 25 Grischkowsky's group has also observed dispersion-free propagation of THz pulses in waveguide structures.…”

Section: It Is Well Known In Linear-systems Theory That the Roots Of mentioning

confidence: 99%

“…Furthermore, the use of two known waveguide lengths, with the shortest length used to provide a background interferogram, implies that the whole process is directly referenced to the impedance of free space provided by the reference arm in the interferometric spectrometer and that no other reference calibration standard is required. In this paper, in order to circumvent the limited power output of the mercury-arc lamp used in cw DFTS, an alternative quasioptical technique for characterizing terahertz (THz) micromachined waveguides 21 is proposed using identical waveguides of different lengths and wideband coherent terahertz spectroscopy. Our one-port approach differs from the two-port approach reported by Grischowski's group.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Measurement of propagation constant in waveguides with wideband coherent terahertz spectroscopy

et al. 2003

View full text Add to dashboard Cite

Section: Methodsmentioning

confidence: 99%

Section: It Is Well Known In Linear-systems Theory That the Roots Of mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Measurement of propagation constant in waveguides with wideband coherent terahertz spectroscopy

et al. 2003

View full text Add to dashboard Cite

“…Over the last few years, diverse fabrication methodologies [17]- [23] have been developed to manufacture AFSIW components. [17] proposes a special high-resolution micromachining-based technique for application at millimeter-wave and terahertz frequencies [17].…”

Section: Introductionmentioning

confidence: 99%

“…[17] proposes a special high-resolution micromachining-based technique for application at millimeter-wave and terahertz frequencies [17]. The approach in [18] is based on low temperature co-fired ceramics (LTCC) technology.…”

Section: Introductionmentioning

confidence: 99%

Substrate-Independent Microwave Components in Substrate Integrated Waveguide Technology for High-Performance Smart Surfaces

Kapusuz

Rogier

2018

IEEE Trans. Microwave Theory Techn.

View full text Add to dashboard Cite

Abstract-Although all existing air-filled substrate integrated waveguide (AFSIW) topologies yield substrate-independent electrical performance, they rely on dedicated, expensive, laminates to form air-filled regions that contain the electromagnetic fields. This paper proposes a novel substrate-independent AFSIW manufacturing technology, enabling straightforward integration of highperformance microwave components into a wide range of generalpurpose commercially-available surface materials by means of standard additive (3D printing) or subtractive (computer numerically controlled milling/laser cutting) manufacturing processes. First, an analytical formula is derived for the effective permittivity and loss tangent of the AFSIW waveguide. This allows the designer to reduce substrate losses to levels typically encountered in high-frequency laminates. Then, several microwave components are designed and fabricated. Measurements of multiple AFSIW waveguides and a four-way power divider/combiner, both relying on a new coaxial-to-air-filled SIW transition, prove that this novel approach yields microwave components suitable for direct integration into everyday surfaces, with low insertion loss, and excellent matching and isolation over the entire [5.15 − 5.85] GHz band. Hence, this innovative approach paves the way for a new generation of cost-effective, high-performance and invisibly-integrated smart surface systems that efficiently exploit the area and the materials available in everyday objects.

show abstract

Micromachined Antennas

2002

RF MEMS and Their Applications

View full text Add to dashboard Cite

Printed and bound in Great Britain by Biddles Ltd, Guildford and King's Lynn This book is printed on acid-free paper responsibly manufactured from sustainable forestry in which at least two trees are planted for each one used for paper production.xii PREFACE fabrication technologies can help realize high Q micromechanical filters for frequencies up to and beyond 10 MHz, and micromachined surface acoustic wave (SAW) filters filling the gap up to 2 GHz. Fabrication processes for all these devices and their relative advantages are taken up extensively in this book. In addition, a brief description of packaging approaches that may be extended for these devices is also included for the sake of comprehensiveness in coverage.We have endeavoured to present these topics so as to guide graduate students interested to do research in microfabrication techniques and their applications. It is therefore envisaged that parts of this books would form the curricula of electrical and mechanical engineering, applied physics or materials science departments. In addition, this would also serve as a reference book for practicing researchers in these areas for further widening the scope of their research.Materials for this book have been taken from an advanced level course offered at Pennsylvania State University recently on RF MEMS, and many short courses presented across the world. Valuable comments from the participants of these courses have helped in evolving the contents of this book and are greatly appreciated. In particular we also wish to thank many of our colleagues and students, Taeksoo Ji, Yanan Sha, Roopa Tellakula, Hargsoon Yoon, and Bei Zhu, at the Center for Electronic and Acoustic Materials and Devices for their contributions in preparing the manuscript for this book.We would like to thank Professors Vasundara V. Varadan and Richard McNitt for their support and encouragement. Our thanks are also due to our families, in particular Nisy John, for bearing with our preoccupation in preparing this manuscript. We are also indebted to various researchers for their valuable contributions cited in this book.We are also grateful to the publisher's staff for their support, encouragement and willingness to give prompt assistance during this book project.

show abstract

Fabrication and characterization of micromachined rectangular waveguide components for use at millimeter-wave and terahertz frequencies

Cited by 91 publications

References 8 publications

Measurement of propagation constant in waveguides with wideband coherent terahertz spectroscopy

Measurement of propagation constant in waveguides with wideband coherent terahertz spectroscopy

Substrate-Independent Microwave Components in Substrate Integrated Waveguide Technology for High-Performance Smart Surfaces

Micromachined Antennas

Contact Info

Product

Resources

About