The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This paper presents a flexible testing methodology and the dynamic compliance of PMUs as per the new C37.118.1a amendment published in 2014. The test platform consists of test signal generator, a Doble F6150 amplifier, PMUs under test, and a PMU test result analysis kit. The Doble amplifier is used for providing three phase voltage and current injections to the PMUs. Three PMUs from different vendors...
The focus of this paper is transient phenomena in VSC-HVDC connected offshore wind power plants (WPPs). With the help of a case study modelled in PSCAD simulation software, energisation events are analysed in the time domain. A comparison with more well-known results obtained at energisation of AC connected WPPs indicates that significant differences arise as the energy involved in the switching event...
Proposed is the design of a CMOS highly-linear differential crosscoupled compensator transconductor that combines both cross-quad and cascomp linearisation techniques with enhanced tunability. The proposed cross-coupled compensator linearises the total drain current while maintaining a high input voltage swing range. It achieves a wide tunable gm" nulling over 500 mV differential input signal...
Proposed is the design of a linearised CMOS bidirectional distributed amplifier (DA) that greatly suppresses the third-order intermodulation (IM3) distortion. The drain and gate transmission lines are staggered to purposely mismatch their time-delay and filter out the IM3 distortion. A modified CMOS cross-coupled cascomp circuit is proposed to enhance the linearity of the gain cell with a varactor-based...
In this paper, the design of a fully-integrated CMOS distributed paraphase amplifier incorporating derivative superposition linearization that allows for broadband distortion reduction is presented. Simulation results has yielded a peak S21 power gain of 5.3 dB and then rolls off to a unity gain bandwidth of 8.2 GHz with less than 10deg phase imbalance and amplitude imbalance of less than 1.26 dB...
The design of a fully-integrated multiband tunable linearized CMOS active analog phase shifter with active loss compensation that has broadband signal transmission and provides multiband phase shifting and that allows for broadband distortion reduction is presented. The S21 differential power gain peaks at 7 dB and then rolls off to a unity gain bandwidth of 11.5 GHz. The simulated phase S21 shift...
In this paper, the design of antipodal non-planar linearly tapered slot antenna (LTSA) designed in LTCC technology with wide bandwidth operation for ultra-wideband applications and a practical design guideline of LTCC-based ultra wideband LTSA is presented. The LTCC-based ultra wideband LTSA characteristics are investigated and then compared to a compact antipodal LTCC-based Vivaldi design. Using...
The design of a linearized fully-integrated CMOS distributed amplifier with broadband distortion cancellation capability for ultra-wideband applications is presented. Measured linearized CMOS DA results showed that by reducing the IMD3 products of the linearized DA improves the IIP3 DA linearity which can lead to 5 dB improvement in the linearized DA C/IM3 power ratio. The linearized CMOS DA provides...
The design of a fully-integrated linearized CMOS bidirectional distributed amplifier (DA) based active circulator with broadband distortion cancellation capability is presented. The S21 differential power gain peaks at 7 dB and then rolls off to a unity gain bandwidth of 11.5 GHz. The simulated tunable isolation performance is better than -26 dB. The simulated linearized IIP3 show a 10 dB improvement...
The design of a fully-integrated CMOS linearized distributed amplifier (DA) architectures with broadband linearization and a tunable linearity capability for ultra-wideband applications are presented. DA IIP3 linearity is improved by using feedforward, multi-tanh and cross-quad feedback distortion cancellation based CMOS DA gain cells. Simulations were performed in CMOS 0.18 ??m process technology...
The design of a fully-integrated CMOS bidirectional distributed amplifier (DA) based active duplexer with tunable broadband high isolation capability is presented. The S21 differential power gain peaks at 7 dB and then rolls off to a unity gain bandwidth of 11.5 GHz. The simulated tunable isolation performance is better than -26 dB. The simulated tunable isolation S31 show a 10 dB improvement. Simulation...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.