A fully-integrated 60-GHz transceiver system with on-board antenna assembly is presented. Incorporating on-off keying (OOK) and low-cost designs, this prototype demonstrates a low-power solution for multi-Gb/s wireless communication. The enhanced OOK modulator/demodulator obviates baseband interface circuitry, revealing compact solution. Two structures, folded dipole patch array, are employed to fully examine the performance. Designed fabricated in 90-nm CMOS technology, transmitter receiver...

AThe 60-GHz four-element phased-array transmit/receive (TX/RX) system-in-package antenna modules with phase-compensated techniques in 65-nm CMOS technology are presented. The design is based on the all-RF architecture 4-bit RF switched LC phase shifters, compensated variable gain amplifier (VGA), 4:1 Wilkinson power combining/dividing network, variable-gain low-noise amplifier, 6-bit unary digital-to-analog converter, bias circuit, electrostatic discharge protection, and digital control...

This article presents the 38-GHz phased array 32-element Tx and 16-element Rx with 2-GHz IF 5-GHz LO for fifth-generation (5G) millimeter-wave (MMW) communications. The beamformers upconverters/downconverters are fabricated in 65-nm CMOS. PAs LNAs near antenna ends 0.15-μm GaAs pHEMT. eight-element four-element printed circuit board (PCB) modules integrated multiple circuits (ICs) endfire antennas implemented as unit cells. Four pieces of vertically stacked to construct an 8 × 4 brick...

Several new types of low-cost and robust magnetic near-field probes manufactured in low-temperature co-fired ceramics (LTCC) are presented this paper. Parallel C-shaped strips their variations inserted into the loop area front end to achieve common-mode high-pass notch filters for electric-field noise suppression. These with kind filter have excellent wideband electric field They called high suppression type A ~ D. The size aperture all is 100 μm long 400 wide. signal received from routed a...

To achieve good spatial resolution, small loop size is required in the traditional probe. However, smaller will lead to lower sensitivity for In addition, always limited by minimum line spacing of fabrication process. Another problem that asymmetric electric field coupling into a probe not be canceled perfectly even if structure this symmetric. circumvent these problems, space difference magnetic near-field with three kinds resolutions proposed paper. The head including one-turn and two-turn...

In this paper, a CMOS multichannel transceiver (TRX) is proposed for angular identification in automotive car radar applications. Two transmitters (TXs) and six receivers (RXs) are placed on the same die using 65-nm technology with chip size 3.5 × 3 mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> . To generate millimeter-wave (MMW) frequency-modulated continuous-wave signal, an injection-lock frequency sextupler cascaded 1-to-8...

On the basis of current status silicon based MMICs, it is possible to implement millimeter-wave SOC in silicon-based technologies that include antenna, a medium-power amplifier, transceiver, an LO (frequency synthesizer), and baseband circuits single chip. With certain interconnection schemes, such as flip-chip, connect chip substrate, also integrate best chips for communication system. Currently, CMOS choice circuits, while GaAs InP MMICs can provide noise/power performance transceiver....

Emerging research on 60GHz RF transceivers has demonstrated extensive usage of short-distance communications. One key application is the fast file-transfer system for consumer products, e.g., video download from a kiosk or link between digital camera and laptop, where high-speed (a few Gb/s) low-power (≪0.3W) wireless communication required short distance (≪10cm). Existing solutions [1] inheriting well-developed architecture 2.4/5GHz systems consume significant power primarily because...

In this paper, W-band flip-chip-assembled CMOS chip modules with transition compensation are presented, a three-stage amplifier, balanced and down-converted Gilbert-cell subharmonic mixer included in the set. The flip-chip process on ceramic integrated passive devices (CIPD) bump size of 30 μm × 27 m is developed for millimeter-wave applications. Without compensation, frequency return loss each shifted, which deviates from bare die measurement results. By applying network transition, dips...

In this letter, we present a high-efficiency CMOS voltage control oscillator (VCO) at K-Band. order to achieve high efficiency, adopt center-tapped transformer and current reused technique integrate cross couple pair buffer amplifier. addition, put amplifier gate bias class AB enhance efficiency. VCO tuning range is from 22.35 25.31 GHz. Across the frequency range, peak output power best efficiency are 4.37 dBm 10.93%, respectively. Phase noise better than -101 dBc/Hz 1 MHz offset all range....

A novel method for acquiring the scattering matrix of an n-port network from measurements using a reduced-port analyzer is developed. This can obtain nonreciprocal or reciprocal with use three- two-port analyzer. The formulation this considers imperfection terminators used in measurement, and only two are required to be known. Experimental results four-port microstrip circuit show good accuracy developed method.

Two <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">V</i> -band low-noise amplifiers (LNAs) with excellent linearity and noise figure (NF) using 90-nm CMOS technology are demonstrated in this paper, employing parasitic-insensitive linearization topologies, i.e., cascode common source, for comparative purposes. To improve the without deteriorating NF, 54-69-GHz LNA is linearized by body-biased post-distortion, 58-65-GHz common-source distributed...

This paper presents a monolithically integrated 2×4 coherent source array operating at 0.54-0.55 Tera-Hertz (THz) in 65nm digital CMOS technology. The contains 20 oscillating elements which can radiate in-phase THz signal via each of their own differential slot ring antennas. Each the is made triple-pushed Colpitts voltage controlled oscillator (TPCVCO). Among these elements, 16 are used for radiation cores and 4 synchronization bridges. tested to 61 126 μW peak power near 0.55 by consuming...

In this letter, we present a low-power vector-sum phase shifter for upcoming 5G communication at 28 GHz. The ±I/±Q signals synthesis by vector adder (VA) are generated 90° coupler and two reflection-type biphase modulators. Modulators only biased 0 1.8 V to avoid large insertion loss near their reversal region. Our proposed single-ended branches quadrature structure can the differential variable gain amplifier achieve low power compact area. addition, use current reused technique connect VA...

This article presents a low-power CMOS digitally controlled variable gain low-noise amplifier (VGLNA) at $V$ -band in 40-nm LP process. There are three stages and digital control bits this VGLNA. The first stage is common source amplifier, the second third current-reused amplifiers. In order to save dc power gain, we use technique add switch between upper lower transistors. Due constant current, input impedance of stable. Output stabilized by an ac grounding capacitor terminal transistor...

The port reduction method (PRM) is a to acquire the scattering matrix of an n-port network from measured at reduced order by terminating certain ports. This then relaxes instrumentation requirement and calibration procedure. As two, can be obtained measurement using conventional two-port vector analyzer. In this paper, we describe two novel PRMs, which reduce ports two. experimental results show good accuracy. These PRMs provide simpler procedure than those directly addition, they give more...

In this paper, a fully system-in-package (SiP) integrated <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">V</i> -band Butler matrix beam-switching transmitter (TX) is presented. The CMOS chips from differential process technologies are assembled on low-temperature co-fired ceramic (LTCC) substrate carrier by flip-chip interconnects. vertically embedded folded monopole antenna designed and into the LTCC. array consisting of four identical antennas...

This letter presents an improvement of the T-type high-pass network inside phase shifter a broadband 90 <formula formulatype="inline" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><tex Notation="TeX">$^{\circ}$</tex></formula> or quadrature power splitter (QPS). QPS consists Wilkinson divider and shifter. By proposed design, bottom layers MIM capacitors are utilized as coupled line to improve bandwidth error return loss. The measured results this...

In this paper, we present a high-gain and wideband Gilbert cell mixer at K-band using PMOS cross couple pair as an active load. To avoid latch-up problem, paralleled low resistor (2RLoad) pair. We also use transimpedance amplifier to transfer impedance drive high circuit next stage, such ADC OPA. The proposed achieves 24 dB peak voltage conversion gains under 1 MΩ load 7 GHz 3-dB bandwidth. From 20 30 GHz, the RF-to-LO LO-to-RF isolations are better than 33 dB. DC power consumption was only...

In this paper, we propose a wide tuning range CMOS voltage control oscillator (VCO) at D band. order to increase range, adopt switching transformer change coupling coefficient. addition, cascade 70 GHz VCO with frequency doubler double 140 GHz. Combined-metal technique is used improve Q of passive components and reduce insertion loss transmission line for better phase noise. 14.5 % which from 122.9 142.9 At 142 GHz, peak output power efficiency −2 dBm 1.74 %, respectively. Phase noise than...

Traditional FOWLP (fan out wafer level package) requires relative expensive semiconductor equipment to form RDL layers. On the other hand, fan chip last package (FOCLP) uses low cost substrate and packaging produce essentially same final structure. As transmission lines transitions within a are crucial RF millimeter wave performances, this paper will investigate performances of several different line structures in stacking coreless substrates FOCLP. The loss beta on these be compared provide...

In RF/microwave circuit design, inductor design is one of the most difficult and time-consuming tasks due to tedious trial-and-error optimization process achieve target specifications such as inductance, quality factor occupied space. This paper brings forward a fast spiral synthesis method, which automatically generates physical layout inductors according electrical specifications. By fusion substrate-aware partial element equivalent (PEEC) model with nonlinear engine, our modeling...

A dual-mode rectangular ring bandpass filter at 60 GHz using 90 nm CMOS process is presented. Transmission lines in the are converted into meander to reduce size of ring. Capacitors also added four corners rectangle miniaturise further core 355 × 335 µm. The measured insertion loss 4.2 dB centre frequency 59 with 14.5 3 bandwidth. Return better than 12 passband. Measurement results agreed well EM simulation.

Mutual inductance between coupled inductors can provide large equivalent series required by filter design. As mutual is dependent on the distance metal lines within inductors, in traditional straight line (SLCI) susceptible to layer-to-layer misalignment during fabrication if two are located at different substrate layers. Misalignment-tolerant (MaTCI) proposed alleviate effect of inductance. Circuit model also describe their mechanism. Their performance verified and compared with SLCI using...

Two types of low-cost and robust magnetic near-field probes manufactured in low temperature co-fired ceramics (LTCC) are presented this paper. The shielded-loop coil via fences used the to provide better electric field coupling suppression. Type I probe is designed receive horizontal field, inserted loop aperture along sides reduce from sides. inner size 700×380 μm. flip-chip bonding, which has insertion loss good shielding capability, also probe. We take over a 2000-μm-wide microstrip line...