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Taconic ADD publishes technical articles in trade magazines and presents technical papers at microwave conferences. We also receive technical articles from our customers and leading OEMs. We would like to make them available to our global customer base, who can download them in pdf format. For further information please contact Taconic Technical Service.

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An Active High-Impedance Surface for Low-Profile Tunable and Steerable Antennas
RF-60A, artificial magnetic conductor, AMC, frequency selective surface, FSS, steerable antenna, tunable AMC. 2.36 - 2.82 GHz
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Artificial magnetic surface for circular polarization improvement
TLY-5, CER-10, antenna, circular polarization, CP; frequency selective surfaces, FSS; artificial magnetic conductors, AMC; cross polarization discrimination, XPD
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Planar High-Gain WLAN PCB Antenna
TLY, antenna gain, directive antennas, microstrip antenna, WLAN, 5.6-6.3 GHz
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Strategies for Designing Microwave Multilayer Printed Circuit Boards Using Stripline Structures
TSM-DS, fastrise27, TSM-30, RF-35A2, stripline, pad registration, dimensional stability, impedance fluctuation, fusion bonding, thermal ageing, z-axis expansion, reliability, Young's modulus
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Unusual Circuits Call for Unusual Materials
HyRelex, flexible circuits, thin film resistors
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Trends in RF/Microwave & High Speed Digital and their effect on PCB Technology Requirements
TSM-30, fastrise
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A 45W amplifier for 23cm
RF-35, power amplifier, LDMOS technology
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Measuring Dielectric Properties and Surface Resistance of Microwave PCBs in the K-band
TLY-5A, TLC-32, DK, dielectric constant (ε), df, loss tangent (tanδ), temperature dependance, -50°C to +70°C
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Passive intermodulation in printed lines: effects of trace dimensions and substrate
microstrip lines, passive intermodulation (PIM), forward PIM, reverse PIM
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Experimental Observations of Distributed Nonlinearity in Printed Lines
PTFE laminate, pcb nonlinearity, passive intermodulation (PIM)
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Mapping of Passive Intermodulation Products on Microstrip Lines
RF-30, microstrip lines, near field probing, nonlinearities, passive intermodulation (PIM)
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Passive Intermodulation in Finite Lengths of Printed Microstrip Lines
RF-30, distributed nonlinearity, intermodulation distortion, passive intermodulation (PIM), printed circuits
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Passive Intermodulation Generation on Printed Lines: Near-Field Probing and Observations
TLX-9, four-wave mixing, near-field probing, passive intermodulation (PIM), printed circuit board (pcb) material characterization, printed circuits
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Compact Folded Substrate Integrated Waveguide Cavities and Bandpass Filter
TSM-30, TPN-30, multilayer, 8 GHz bandpass filter, folded substrate integrated waveguide (FSIW) cavity
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Using EBG to improve antenna efficiency in proximity to the human body
RF-35, CER-10, 2.45 GHz patch antenna, ERG, human wearable antenna, WBAN
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Improving wearable slot antenna performance with EBG structures
RF-35, CER-10, 2.8GHz slot antenna, EBG (Electromagnetic Band Gap) substrate, WBAN
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Considerations for EBG Loss in Antenna Applications
RF-35, 2.8 GHz slot antenna, EBG (electromagnetic band gap) structure
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The κ and μ Distribution Applied to the Analysis of Fading in Body to Body Communication Channels for Fire and Rescue Personnel
TLY-3, wireless bodyworn antennas, bodyworn channel, κ-μ distribution, wireless personal area networks, WBAN
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The Performance of On-Body Wearable Antennas in a Repeatable Multipath Environment
TLY-3, 2.45 GHz, wearable antenna, WBAN, on-body channels, multipath fading, Higher Mode Microstrip Patch Antenna (HMMPA)
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Compact slot-loaded patch antenna for 868 MHz Wireless Body Area Networks
TLY, ISM band, wireless body area network, WBAN, slot-loaded antenna
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In Situ Measurement of UHF Wearable Antenna Radiation Efficiency Using a Reverberation Chamber
TLY-3, 2.45 GHz, bodyworn antenna, on-body communication, wearable antenna radiation efficiency, WBAN
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Transmission/Reflection Measurement and Near-Field Mapping Techniques for Passive Intermodulation Characterisation of Printed Lines
RF-30, TLG-30, PIM, soldered microstrip launchers, contactless microstrip launchers
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Discrimination of Passive Intermodulation Sources on Microstrip Lines
TLX-9, RF-30, forward PIM
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Complex Compensation of Coupled Line Structures in Inhomogeneous Media
RF-60A, coupler
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Transmission zeros origin and behaviour in a Microwave Transversal Filter based on Planar Technology
RF-60A, bandpass transversal filter,
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Circular and Elliptical CPW-Fed Slot and Microstrip-Fed Antennas for Ultrawideband Applications
TLC-30, circular, coplanar waveguide (CPW), elliptical, microstrip, slot, ultrawideband (UWB)
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ATE Interconnect Performance to 43 Gbps Using Advanced PCB Materials
fastRiseTM, ATE PCBs, low loss, high frequency, mmWave applications, fiberglass free prepreg
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Effect of Laminate Properties on Passive Intermodulation Generation
Passive intermodulation (PIM), forward PIM, reverse PIM
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Passive Intermodulation on Microstrip Lines
Passive intermodulation (PIM), forward PIM, reverse PIM
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Low-Profile Microstrip Patch Antenna for Over-Body Surface Communication at 2.45 GHz
TLY-3, wearable antennas; human body effects; compact patch antenna; on-body communications, 2.45 GHz
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Antennas and Propagation Considerations for Robust Wireless Communications in Medical Body Area Networks
TLY-3, RF-60A, wearable antennas, radio propagation, wireless networking, channel characterisation, 2.45 GHz
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Low-Profile Patch Antennas for Over-Body-Surface Communication at 2.45 GHz
TLY-3, RF-60A, body surface communication, shorted microstrip patch antenna (S-MPA), higher mode microstrip patch antenna (HM-MPA), 2.45 GHz
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Miniaturization of microstrip patch antenna
TLY, microstrip patch antenna, electromagnetic bandgap substrate (EBG), 2.4 GHz
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Inductively compensated parallel coupled microstrip lines
RF-35, RF-60, coupled-line resonator, Marchand balun, microstrip, parallel coupled filter, parallel coupled lines
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The Anisotropy of Dielectric Constant in TLY-5A Material
anisotropy, woven fiberglass, PTFE, Dielectric Constant, Er, TLY-5A, Bereskin
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New Low-Loss Laser Ablatable Substrate for Microwave Circuits
TacLamPLUS, mm Wave, module, MMIC, laser via
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The Impact of Conductor Surface Profile (Rrms) on Total Circuit Attenuation in Microstrip and Stripline Transmission Lines
Rrms, ED copper, RA copper, reverse treated copper, microstrip, stripline, conductor loss
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Multilayer Lamination Methods for PTFE-Based PCBs
PTFE multilayer lamination, rf, digital, single lamination, sequential lamination, fusion bonding, CTFE, FEP, thermoset prepregs, TacPreg, TacBond HT1.5
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A Printed Dipole Antenna With Optimised Tapered Feeding Balun For ISM and FWA Bands
TLY, wideband antenna, printed dipole, tapered balun, low-Q antenna, ISM/FWA
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Dual Polarized Microstrip Patch Antenna, Reduced in Size by Use of Peripheral Slits
TLY, microstrip patch antenna, size reduction
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Microwave Multilayer PCBs
microwave multilayer, RF-35, TacPreg, TacBond HT1.5
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Design optimisation of ring elements for broadband reflectarray antennas
RF-35, broadband reflectarray antenna
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Negative index media in microwave waveguide
RF-35, X-Band, microwave waveguide, negative index media, NIM
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Microstrip Patch Antenna for GPS application
TLC-32, microstrip patch antenna, GPS
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GHz Flip Chip - An Overview
TLY, GHz flip chip assembly
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Design and Analysis of an Electrically Steerable Microstrip Antenna for Ground to Air Use
TLY, polarized microstrip antenna, 2.45 GHz, avionics
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Antiphase Design for Balanced Oscillators
TLX-0, oscillator, MMIC
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Environmental Aspects of PTFE Based Laminates in Relation to "Halogen-Free"
PTFE laminate, halogen-free, fluorine
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PTFE microwave substrates for automotive applications
RF-35, TacPreg, TLY, TacLam PLUS, automotive radar, engine management system, tyre pressure monitoring system
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Signal-Integrity Measurements Support the Candidacy of PTFE at High Data Rates
RF-35, RF-35P, TacLam 3200, TacPreg™ TP32, high layer count all-PTFE multilayer, backpanels, Eye Pattern, copper peel strength, high-speed digital
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Mehr Speed mit PTFE
(the German original of the above)
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Novel Module Architectures up to 50 GHz - SMT and RF-Boards
TLE-95, TacLam Plus, RF and millimeter wave modules, SMT packages, PROKOSMOS project
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Exact Simulation of LNAs Reduces Design Cycle Times
RF-35, LNA design, return loss, gain, noise
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PTFE-based Composites for High Speed Digital Designs
RF-35, RF-35P, TacPreg™ TP32, high layer count all-PTFE multilayer, high-speed
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Novel Compact Narrow-band Microstrip Dual-mode Resonator Filters for G3 Communication Systems
TLC-32, microstrip resonator, bandpass filter, UMTS,
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A Low Loss PTFE-based Bond Ply Material for Multilayer PCB Applications
RF-35, RF-35P, TacPreg™ TP32, high layer count all-PTFE multilayer, high-speed
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High Performance Economical Substrates - Myth or Reality?
RF-35, RF-35P, thermoplastic resin, thermoset resin, high copper peel strength, standard FR4 processing
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Design and Development of Printed Antenna Remote Units for Optically Distributed Mobile Communications
TLX-8, bandpass filter, antenna remote unit, ARU
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The European Technology and Trend Report 2001/2002 on HDI - High Density
VDE/VDI GMM; HDI PWBs design, manufacture, materials; PTFE base material
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RF Radio Links and LMDS Communications - Module Technology, Status and Trends
T/R module, RF radio link, mixed dielectric multilayer, PTFE base material, LMDS communication, packaging
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Integrated Antennas for Millimetre-Wave Asset Tracking
Van Atta array antenna, mm-wave application, asset tracking, TLY-5
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A Low Profile 77 GHz Three Beam Antenna For Automotive Radar
Automotive radar, microstrip patch antenna, TLY-5
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Multifunction Dual Channel, Dual Band Phase Sensitive Transceiver
Dual band receiver, mm-wave application, MMIC, TLX
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Thin Dielectrics in PWB Techniques and its Possibilities for DCA and HDA
Multilayer, buried chips, offset printing, TacLam
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Numerical Investigation of Vertical Contactless Transitions for RF Circuits
Contactless transitions between different planar transition lines, passive intermodulation, GSM band frequency, TLC-30
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Effects of Surface Finish on HF Signal Loss Using Various Substrate Materials
Organic Solderability Preservative (OSP), Hot Air Solder Levelling (HASL), Electroless Nickel/Immersion Gold (ENIG), and Immersion Silver on ceramid filled and unfilled woven glass PTFE laminates, and FR4
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The Use of PTFE Base Materials
Processing, multilayer, PTFE/woven Glass base materials vs. thermoset resin/woven glass base materials
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Der Einsatz von Basismaterial aus PTFE
(the German original of the above)
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Hybrid Multilayer
Possible constructions, base material selection, multilayer manufacture (generation of inner layers, lamination, drilling, desmearing, through-hole plating, outer layer generation, finishing, routing)
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Hybrid-Multilayer
(the German original of the above)
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Design and Development of Printed Antenna Remote Units for Optically Distributed Mobile Communications
Hybrid integration, printed antenna, RF-35, RF photonic link
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Cost-effective microwave solutions - also suitable for HDI
Processability PTFE vs. thermoset laminates, pricing PTFE vs. thermoset laminates, PTFE/FR4 hybrid multilayer, TacLam - controlled thickness, low loss material for HDI, PTFE prepregs for multilayers
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High Frequency Test Methods
1 MHz 2-fluid-cell test method, microstrip testing, "Bereskin" stripline test,
full sheet resonance test method, X-band stripline resonator, modified
stripline test, waveguide perturbation test method
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