A new type of broadband link enabling extremely high-speed chip-to-chip communication is presented. The composed fully integrated sub-mmWave on-chip traveling wave power couplers and a low-cost planar dielectric waveguide. This structure based on differentially driven half-mode substrate waveguide supporting the first higher order hybrid microstrip mode. cross-sectional width coupler tapered in direction propagation to increase coupling efficiency maintain large bandwidth while minimizing...

The issue of designing a low-noise microwave feedback amplifier for given optimum noise-source coefficient /spl Gamma//sub Sopt/ is addressed and set original formulas presented. These expressions define new procedure which does not rely on computer optimization in order to get the required noise performance stage. technique permits design circuit simultaneously power matched at its input port without an matching circuit. This method can be used screen devices it provides essential...

In this paper, the technical considerations and broad business implications of RFID are focused. The basic hardware elements tags readers. data exchanged between these two may be encrypted or processed as needed. From a point view, challenges in designing an tag many. Silicon technology can deliver required circuit performance at low cost high volume efforts made to design system on chip (SOC) RF frequency.

The constraint on the Wiatr–Pospieszalski (WP) parameter <formula formulatype="inline" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><tex Notation="TeX">$ \Theta _{\rm W\!P}= {{ 4 {NT}_{\rm o} }/{ {T}_{\rm m}}}\leqslant 2$</tex></formula> , where xmlns:xlink="http://www.w3.org/1999/xlink"> <tex {\hbox{N}}$</tex></formula> is Lange invariant and m}$</tex></formula> minimum equivalent noise temperature o}={\hbox{290}}~ \left ( {\hbox{K}} \right...

A new procedure for the extraction of noise parameters on-wafer devices is presented and validated experimentally first time. The based on figure measurement similar different size biased at constant drain current density J <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">ds</sub> voltage V . Key to its implementation a scalable model. model in use Pospieszalski model, equivalent temperatures T xmlns:xlink="http://www.w3.org/1999/xlink">gs</sub>...

The authors describe circuit design solutions for a 900 MHz voltage variable attenuator (VVA) integrated that aims to achieve straight line attenuation slope versus control as well process and temperature insensitivity. Power linearity is also taken into account. Measured results are presented in order compare the new VVA original confirm robustness of design.

The inequality T <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">min</sub> /T xmlns:xlink="http://www.w3.org/1999/xlink">0</sub> les 4N for any noisy linear two-port network is completely demonstrated the first time. A graphical interpretation to link Lange invariant N minimum noise performance or F also presented. new term DeltaN defined and be lossless transformations. Its sign important contribute as little possible. Finally, conditions...

This paper presents a rigorous analysis to determine the noise parameters of linear noisy microwave networks with any number ports. The expands well-established approach for determination two-port network N-port and enhances understanding its measurement procedure as particular case this analysis. A thorough discussion results identifies constraints highlights practical requirements successful characterization setup networks. is then applied four-port passive network's allows experimental...

An analysis is presented of the changes noise parameters a two-port network when noisy series and parallel feedback immittances are applied. Exact formulas for R/sub n/, g/sub /spl rho//sub n/ given as functions network. It proved that always reaches minimum reactive considered. The same results demonstrated since duality principle pointed out. valid wide range linear microwave networks, either passive or active, they used to confirm data from previously published work.

This article presents a highly linear BiCMOS sample and hold amplifier (SHA) providing 2.8 GS/s intermediate frequency (IF) sampling for 1 GHz bandwidth input spanning from 1.5 to 2.5 GHz. A single-transistor hold-mode feedthrough cancellation technique is implemented remove the distortion resulting nonlinear parasitic capacitance at node. The SHA designed in mainstream 130 nm technology using SiGe heterojunction bipolar transistors (HBTs) buffer wide-band input. Potential inclusion of this...

This paper presents a highly linear BiCMOS sample and hold amplifier (SHA) providing 2.8-GS/s intermediate frequency (IF) sampling for 1-GHz input bandwidth spanning from 1.5 to 2.5 GHz. A single-transistor hold-mode feedthrough cancellation technique is implemented remove distortion resulting the nonlinear parasitic capacitance at node. The SHA designed in mainstream 130-nm technology using SiGe heterojunction bipolar transistors buffer wideband input. proposed enables monolithic...

This contribution deals with the microwave linear characterization and noise figure measurement of four on-wafer GaAs pseudomorphic high-electron mobility transistors having scaled gate widths. The proposed campaign has been fulfilled in two different laboratories: University Messina, Italy US Naval Research Laboratory, Washington, DC, USA. Two equivalent approaches have straightforwardly employed: a standard tuner-based technique novel tuner-less technique. effectiveness confirmed as...

Summary This paper describes in detail a novel, fully analytical technique for the determination of high frequency noise parameters. The can be applied at any interest because requirement an external tuner is dropped. absence input removes practical constraint operational bandwidth system and opens door to direct evaluation parameters active devices ranges currently inaccessible. mathematical formulation basis present Pospieszalski model described detail. new provides tool determine...

The paper tackles the issue of designing tunable Marchand baluns and provides an insight on available approaches for integrating structure in a semiconductor process. Limitation approach possible solutions are also discussed. analysis is applied to balun fabricated IBM 8HP SiGe process demonstrate feasibility approach. A mix measured simulated data used support at Q band. State-of-the-art performance achieved.

The authors address the problem of designing a linear lossy input matching network for low-noise amplifiers so that source impedance can deliver its available power and correspond to minimum noise figure driven stages. differences between lossless networks are highlighted because circuits usually considered be when an amplifier. After stating assumptions, solution number elements fulfilling requirements is developed. result explains why standard distributed approach often fails cope with...

For the first time, experimental values of noise parameters a set GaAs pHEMT obtained through standard source tuner-based Lane technique and new size-based, tuner-less technique, are compared. The have been independently by 2 renowned microwave laboratories after sharing same devices. located at University Messina, Italy, US Naval Research Laboratory in Washington, DC. This paper demonstrates accomplishments: that equivalent to technique; extraction has extended successfully up 26 GHz....

The paper outlines the main results of a novel and comprehensive analysis for determination noise parameters linear noisy microwave networks with any number ports. well-established approach by Lane case 2 port becomes particular this analysis. A thorough discussion identifies practical requirements as well constraints successful characterization N-port networks. passive 4 network are determined to validate against measurements. This is first demonstration method determine

This paper summarizes our approaches which synthesize the optimum electromagnetic (EM)-wave environment around various silicon devices, in order to maximize device efficiency with minimum passive loss and footprint. has enabled multi-mW THz radiation standard processes. Various critical capabilities for future microsystems, including integrated phase locking, multi-pixel coherent imaging, an ultra-broadband inter-chip waveguide link, are also demonstrated.

This study develops a unifying theory that defines single transformation from the impedance Z to reflection coefficient Γ plane independently of normalisation in use; and real or complex nature characteristic Z0. The starts off Kurokawa&apos;s definition discuss required steps map into highlights differences exist between standard definition. As logical consequence previous discussion, new is proposed validated: apparent stemming either are easily interpreted as particular cases...

This paper describes a new procedure to extract the noise parameters of on-wafer devices. The is based on multiple figure measurements similar devices different size and biased at constant drain current density J <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">ds</sub> VDS. theory in support this novel approach presented validated against simulations. Key its implementation scalable model. model use Pospieszalski model, equivalent temperatures T...

Full duplex communication systems promise to double the available spectrum by enabling simultaneous transmit and receive capabilities. Receiver linearity its effective isolation from transmitter must be extremely large allow detection of any desired signals in presence self-interference within receiver bandwidth. Echoes environment may introduce additional distortion that further hinder detection. These challenges are multiplied if full capability is achieved over wide bandwidths. This paper...

This papers reports for the first time on measurement of noise parameters an active noisy 4-port network. The stems from a novel analytical approach that allows linear network with any number ports to be determined. has been described in previous publication and passive networks were used confirm its correctness. paper applies new technique device time. results feasibility measuring mixed-mode circuits without use additional such as baluns open up possibility determining figure values...

The paper outlines the main results of a novel and comprehensive analysis for determination noise parameters linear noisy microwave networks with any number ports. well-established approach by Lane case 2 port becomes particular this analysis. A thorough discussion identifies practical requirements as well constraints successful characterization N-port networks. circulator are determined to validate against measurements. This is first demonstration method determine network

In this article, a novel tunerless technique aimed at extracting the noise parameters of on-wafer transistors is experimentally validated. detail, effectiveness method has been confirmed by employing two different setups in remotely located laboratories. The obtained exhibit level accuracy typical standard source tuner-based Lane technique, without well-known limitations due to microwave tuner. theoretical bases have straightforwardly illustrated, and an extensive measurement campaign...