Improved Performance of Multilayer CPW Inductors on Flexible Substrate

Menićanin, Aleksandar; Ivanisevic, Nikola; Živanov, Ljiljana; Damnjanović, Mirjana; Marić, Andrea; Randjelović, Danijela

doi:10.1109/tmag.2014.2329720

Cited by 5 publications

(2 citation statements)

References 6 publications

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“…There are several electronic components, such as strain sensors, inductors, capacitors, and antennas, that can be fabricated using commercially available inkjet printers [27][28][29][30]. This work focuses on a high-frequency antenna design fabricated by inkjet printer with silver nanoparticle ink on PET substrates.…”

Section: List Of Figuresmentioning

confidence: 99%

Mechanical and High-Frequency Electrical Study of Printed, Flexible Antenna Under Deformation

Zhou

Sivapurapu

Swaminathan

et al. 2020

IEEE Trans. Compon., Packag. Manufact. Technol.

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The meaningful discussions we shared on research work and life have indeed made my experience in graduate school more than enjoyable. In addition, I would like to thank other professionals and students who are involved in my research including Dr. Jim Huang from Hewlett Packard Enterprise as well as Sridhar Sivapurapu and Nahid Aslani Amoli from Dr. Swaminathan's group. Many thanks are due to my parents who always stood behind every critical decision I made. I would not have accomplished this milestone without their love, support, and trust. I would like to acknowledge that this material is based, in part, on research sponsored by Air Force Research Laboratory under agreement number FA8650-15-2-5401, as conducted through the flexible hybrid electronics manufacturing innovation institute, NextFlex. ivTABLE OF CONTENTS ACKNOWLEDGEMENTS iii LIST OF TABLES vi LIST OF FIGURES vii LIST OF SYMBOLS AND ABBREVIATIONS xiv SUMMARY xvi CHAPTER 1. INTRODUCTION CHAPTER 2. BACKGROUND AND LINTERATURE REVIEW 2.1 History of Conformal Antenna and Flexible Printed Antenna 2.2 Mechanical Testing of Flexible Printed Electronics 2.3 Antenna Performance Under Strain CHAPTER 3. OBJECTIVES AND SCOPE CHAPTER 4. ANTENNA DESIGN AND FABRICATION RESULTS 4.1 Fabrication Process 4.2 Antenna Design in HFSS 4.2.1 Layer Thickness 4.2.2 Material Electrical Properties 4.2.3 HFSS Simulation Setup and Results 4.3 Fabrication Results and Comparison to Simulation CHAPTER 5. MANDREL BENDING TEST AND RESULTS 5.1 Mandrel Bending Test Over Different Sizes of Mandrel 5.1.1 Experimental Setup and Procedure 5.1.2 Experimental Test Results 5.2 Cyclic Mandrel Bending Test over Mandrel Size of 0.625 in. Radius 5.2.1 Experimental Procedure and Results of Sample P1 5.2.2 Experimental Procedure and Results of Sample P2 CHAPTER 6. MECHANICAL FINITE-ELEMENT ANALYSIS OF MANDREL BENDING TEST 6.1 Geometry Modeling 6.2 Material Modeling 6.2.1 Characterization of Printed Silver Ink's Property 6.2.2 Other Materials' Properties 6.3 Loading and Boundary Conditions v 6.4 Initial Meshing Details 6.5 Mesh Convergence and Simulation Results CHAPTER 7. BIAXIAL BENDING TEST AND RESULTS 7.1 Experimental Fixture Design and Setup 7.2 Experimental High-Frequency Measurement Results 7.3 SEM Images Results CHAPTER 8. MECHANICAL FINITE-ELEMENT ANALYSIS OF THE BIAXIAL BENDING TEST 8.1 Loading and Boundary Conditions 8.2 Mesh Convergence and Simulation Results CHAPTER 9. Conductivity Change Impact on Patch Antenna's High-Frequency Electrical Behavior 9.1 Updated HFSS Model 9.2 Conductivity Impact on the S11 Response CHAPTER 10. Conclusion, Contributions, and Future Work 10.1 Conclusion 10.2 Contributions 10.3 Future Work REFERENCES CHAPTER 1.

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Section: List Of Figuresmentioning

confidence: 99%

Mechanical and High-Frequency Electrical Study of Printed, Flexible Antenna Under Deformation

Zhou

Sivapurapu

Swaminathan

et al. 2020

IEEE Trans. Compon., Packag. Manufact. Technol.

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“…Coplanar waveguides (CPWs) on dielectric substrates were introduced in 1969 [11] and they are commonly used in microwave monolithic integrated circuits (MMICs) [12]. A multitude of CPW components have emerged with high performances: CPW inductors [13][14][15], CPW capacitors [16,17], microstrip lines and slotlines [18]. CPW components allow fast and inexpensive fabrication and characterization of RF circuits such as filters, couplers and amplifiers [19].…”

Section: Capacitance Variationsmentioning

confidence: 99%

Design and fabrication of a continuously tuned capacitor by microfluidic actuation

Habbachi

Boussetta

Boukabache

et al. 2018

J. Micromech. Microeng.

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This paper presents the design and the fabrication of a continuously tunable RF MEMS capacitor using micro fluidics as a tuning parameter. The impedance variation principle is based on the modification of the capacitor gap permittivity produced by the presence of deionized water and its displacements in a channel inserted between electrodes. In addition, the electric field distribution changes in equiponderant way according to the DI water positions in the channel. This change modifies the capacitive coupling, the stored energy and consequently the self-resonant frequency. The fabrication process is based on two parts: metallic paths having a spiral form, and obtained by electroplating a 7 µm thick gold layer to constitute electrodes; and fluidic channels, realized by super imposing two SU-8 films. The measurements show a non-linear variation of the capacitor value according to the water positions. The tuning range is very large, reaching up to 4650% for the capacitance, and 335% for the resonant frequency. However, the quality factor reaches Qmax = 79 at 550 MHz if the capacitor is empty and decreases with the fluid displacements to Qmin = 3.13.

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Applications of Printed Materials

Izdebska

2016

Printing on Polymers

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Improved Performance of Multilayer CPW Inductors on Flexible Substrate

Cited by 5 publications

References 6 publications

Mechanical and High-Frequency Electrical Study of Printed, Flexible Antenna Under Deformation

Mechanical and High-Frequency Electrical Study of Printed, Flexible Antenna Under Deformation

Design and fabrication of a continuously tuned capacitor by microfluidic actuation

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