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Showing 1 to 20 of 36 for “"CPW"”.
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Design and Analysis of an Electronically Steerable Microstrip Patch and a Novel Coplanar Waveguide (CpW) Fed Slot Antenna Array
… and design of a wideband Coplanar Waveguide (CPW)-fed slot phased array antenna is presented. In both cases the array beam scanning properties are elucidated by incorporating the measured delay line scattering parameters inside Ansys Designer simulation models and then computing and presenting …
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Impedance measurements at W-band using an array of bismuth microbolometers
… voltage standing wave on a coplanar waveguide (CPW) is measured at W-band (75-110 GHz) using an array of bismuth microbolometers placed over the CPW. From this information, the impedance of the load at the end of the line can be determined in addition to the propagation and attenuation constant …
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Investigation into the design of ultra-wideband (UWB) and multi-band antennas
… we considered the use of coplanar waveguide (CPW) fed printed UWB antenna for compact, body-worn applications. We investigated the antenna performance using empirical optimisation. The work on CPW-fed printed antennas has led to the development of multi-band antennas also. For UWB antennas, we …
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The synthesis and reactivity of functionalised alkyl transition metal complexes
The complexes [CpFe(CO)₂CH₂X] and [CpW(CO)₃CH₂X] (Cp = n⁵-C₅H₅; X=Cl, Br, I) have been prepared and their reactivity with a series of tertiary phosphines, amines, SMe₂ and AsPh₃ in THF, CH₃CN and MeOH has been investigated. Two types of cationic products, namely the ylide complexes [CpM(CO)nCH₂L]+ …
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Advanced Manufacturing and Dielectric Material Characterization Techniques for High-Temperature mm-Wave Antennas
… configuration of a coplanar waveguide (CPW).</p> <p>Performing RF probing on the CPW structure and measuring its S-parameters allows for the determination of the permittivity by extracting the propagation characteristics and then performing an analysis with conformal mapping of the …
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BULK TITANIUM WAVEGUIDE- A NEW PLATFORM FOR UNIPLANAR MICROWAVE CIRCUITS AND RFMEMS
… topologies: Microstrip and Coplanar Waveguide (CPW). Microstrip offers low loss, while suffering from large circuit size, high dispersion, poor design flexibility, and the necessity of large via holes. CPW improves upon microstrip by bringing the ground to the same level as the signal, therefore …
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Model Chemistry on Metal Surfaces: Synthesis, Structure and Reactivity Studies of Tungsten-Osmium Mixed-Metal Clusters
Reaction of H(,2)Os(,3)(CO)(,10) with CpW(CO)(,2)(CTol) provides four mixed-metal compounds, i.e. CpWOs(,3)(CO)(,11) (mu)(,3)-(eta)('2)-C(O)CH(,2)Tol (1), CpWOs(,3)(CO)(,10)((mu)(,3)-CTol)(,2)H (2), Cp(,2)W(,2)Os(CO)-(,7)((mu)(,3)-(eta)('2)-C(,2)Tol(,2)) (3),
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An investigation of nanoscale materials and their incorporation in patch antenna for high frequency applications
… the simulated results. The coplanar waveguide (CPW) diamond-shaped MPA working in the MMW region was designed and fabricated with polymer materials as substrates using thermal evaporation technique and the RF measurement was carried out using Vector Network Analyser (VNA). The resonant …
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Anomalous Nature Of Metamaterial Inclusion and Compact Metamaterial-Inspired Antennas Model For Wireless Communication Systems. A Study of Anomalous Comportment of Small Metamaterial Inclusions and their Effects when Placed in the Vicinity of Antennas, and Investigation of Different Aspects of Metamaterial-Inspired Small Antenna Models
… analysed is a low-profile metamaterial-inspired CPW-Fed monopole antenna for WLAN applications. The antenna is based on a simple strip loaded with a rectangular patch incorporating a zigzag E-shape metamaterial-inspired unit cell to enable miniaturization effect. Secondly, a physically compact, …
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Anomalous Nature Of Metamaterial Inclusion and Compact Metamaterial-Inspired Antennas Model For Wireless Communication Systems. A Study of Anomalous Comportment of Small Metamaterial Inclusions and their Effects when Placed in the Vicinity of Antennas, and Investigation of Different Aspects of Metamaterial-Inspired Small Antenna Models
… analysed is a low-profile metamaterial-inspired CPW-Fed monopole antenna for WLAN applications. The antenna is based on a simple strip loaded with a rectangular patch incorporating a zigzag E-shape metamaterial-inspired unit cell to enable miniaturization effect. Secondly, a physically compact, …
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Atomically thin microwave biosensors
… radio-frequency (RF) coplanar waveguide (CPW). To combine both electrochemical and dielectric sensing concepts, a graphene channel is inserted into the CPW, which can then be functionalised using standard chemical processes developed for graphene direct-current (DC) sensors. The new RF …
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Superconducting Microwave Resonators for Low Loss Sensor Applications
… to analyse the behaviour of coplanar waveguide (CPW) resonators. Using connection matrix theory, I design a half-wavelength resonator capacitively coupled a readout line, and outline the design of the test system and data analysis software used to analyse them. I present results on the …
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Design a high gain UWB mimo uniplanar monopole antenna with FSS array for metallic object microwave imaging
… UMB monopole antenna with a coplanar waveguide (CPW) feed is designed. The proposed UMB antenna has an oscillate impedance (za) of 50Ω. A meander-line notch filter is loaded on the designed antenna that achieves a high rejection (S11=-1.75 dB) at the band of 3.0 GHz for 5G mid-band. A T-strip is …
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QUBIT COUPLED MECHANICAL RESONATOR IN AN ELECTROMECHANICAL SYSTEM
… in a superconducting coplanar waveguide (CPW) cavity. The difficulty of achieving high quality of superconducting qubit in a high-quality voltage-biased cavity is overcome by integrating a superconducting reflective T-filter to the cavity. Further spectroscopic and pulsed measurements of …
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Design, Investigation and Implementation of Hetrogenous Antennas for Diverse Wireless Applications. Simulation and Measurement of Heterogeneous Antennas for Outdoor/indoor Applications, including the Design of Dielectric Resonators, Reconfigurable and multiband DR antennas, and Investigation of Antenna Radiation Performance and Design Optimization
… In addition, a compact conformal wearable CPW antenna using EBG-FSS for MBAN applications at 2.4GHz is proposed. They are designed using fabric materials suitable for daily clothing. The performance of the antenna is investigated in free space, on a layered biological tissue model, and on a …
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Antennas for wireless sensor network applications
… of feed lines applicable, such as microstrip, CPW and slotline, is given. To help characterise the antennas investigated, the fundamental antenna analysis parameters, such as impedance bandwidth, S-parameters, radiation pattern, directivity, antenna efficiency, gain and polarisation are …
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Advanced Orthogonal Frequency-Division Multiplexing Systems with Cyclic Prefix-Less Multiple-Input and Multiple-Output Discrete Fourier Transform Spreading and Unmanned Aerial Vehicles-Assisted Cyclic Postfixed Windowed Schemes
… Orthogonal Frequency Division Multiplexing (CPW-OFDM) signal format. We demonstrate the impact of combining a Tukey windowing technique with Clipping and Filtering (CF) techniques for the simultaneous reduction of both OOB energy and PAPR. Block Diagonalization (BD) channel precoding provides …
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Enabling Hybrid Optical-Microwave Space Communications with Optically Transparent RF Components Using Indium Tin Oxide (ITO)
… Utilizing 4-point probes and coplanar waveguide (CPW) ground signal ground (GSG) probes, we investigated the electrical properties of ITO, including conductivity, permittivity, and loss tangent, and ensured the material's suitability for space conditions and electrical conductivity. The ITO films …
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Development And Characterization Of Beamforming Antenna Systems
… studied and discussed (chapter 3). The CPW feedline behavior and energy leakage of the FPC system are characterized and technique to mitigate them is presented (chapter 4). Microfluids are integrated into the FPC system to offer either tuning/switching capability of the antenna or …
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Contributions towards a coherent chaotic oscillator at 100MHz and 70 GHz antennas for automotive radar applications.
… are realized. The first one uses a grounded CPW line, which allows the antenna to be tested using infinity probes and the second one uses a WR-12 rectangular waveguide to feed and test the operability of the antennas. The array is fabricated and tested in the lab to verify the simulated …
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