This letter describes the design and characterization of a linear polarized 6 × element transmitarray providing beam-steering range 100° at 24.6 GHz. The is formed unit cells continuous electronically reconfigurable phase 360° by using varactor diodes as tunable elements. cell consists four single RO4350B laminate layers. Unit have been characterized measurements showing good agreement with numerical results.

There is a profound need, on both clinical and physiologic grounds, for measure of the contractile state intact ventricle. Such can be obtained by evaluating force-velocity relationship with correction myocardial fiber length. The relation expressed as ratio maximum rate pressure rise to isovolumetric pressure, quantity which was described Hill proportional similar velocity constant chemical reaction. Division this an estimate ventricular circumference corrects variations due differences in...

This paper suggests the usage of an optimized structure embedded wafer-level ball grid array technology for millimeter-wave antennas-in-package. Multiple antenna arrays in a second redistribution layer have been designed, evaluated, and integrated with different transceivers to form very compact sensor packages 61- 122-GHz radar applications. The resulting contain complete front end while featuring dimensions 8 mm × mm. are easy assemble replaceable. Theoretical considerations, numerical...

State-of-the-art 0.15- mu m-gate PHEMT (pseudomorphic high-electron-mobility transistor) devices, self-biasing current sources, source follower interstage, resistive feedback, and on-chip matching have been used to make an unique MMIC (monolithic microwave integrated circuit) LNA (low noise amplifier). Typical gain of 21 dB, VSWR (voltage standing wave ratio) 2:1, P-1-dB output power 7 dBm measured. The die area is small (0.40 mm/sup 2/) compatible with surface mount packages. DC...

This paper presents the design of a miniaturized ultra-wideband (UWB) antenna for wireless body area network (WBAN) communication in human implant applications around 4 GHz. The CST Microwave Studio (MWS) bio model has been utilized process to generate realistic tissue. validated by different measurements. results are good agreement with simulations and provide bandwidth 1.5 GHz casing loaded porcine

We present results of balanced Rx filters based on thin-film bulk acoustic resonator (FBAR) technology for GSM handset front-end module applications. The filtering is achieved by using a lattice filter topology. hermetically sealed wafer-level packaging with solder bumps each terminal, ready flip-chip assembly. size the less than 1 mm/spl and/2 and height 0.35 mm. typical broadband rejection better 35 dB, in-band insertion loss 2 dB. small good temperature stability make FBAR an ideal choice

A monolithic two-stage pseudomorphic high-electron-mobility transistor (PHEMT) low-noise amplifier (LNA) has been developed for the Global Positioning System (GPS) and spread spectrum bands covering 0.5 to 3.0 GHz. This uses Avantek's PHEMT devices with sub-0.2- mu m gate lengths 0.25-dB noise figures in this band. The is unique its use of a source follower second stage, resistive feedback, on-chip matching. Gain 15 dB figure 1.7 have measured. Designed fit into plastic 86 or SOT-143 surface...

Amplifiers and filters must work together in modern wireless systems. Traditional technology does not allow these two functions to be combined effectively. However, this paper demonstrates that the exist integrate amplifiers into one small package. This switched-amplifiers a FBAR filter can integrated glass metal SO-8 The combination provides 23 dB gain over 100 MHz bandwidth, 35 rejection out of band. is only with dual amplifier known authors ever reported.

This paper presents a reconfigurable transmitarray antenna unit cell for frequency of 24 GHz. A continuous phase range is obtained by loading patches with varactor diodes on the outer layers printed circuit board (PCB) while signal couples through slots in inner layers. The design, numerical and experimental characterization rectangular WR-42 waveguide are reported. tuning 120° was achieved custom layer stack which could be extended to 145° using solely RF-substrates.

A powerful monolithic integrated switched-LNA utilizing advanced pseudomorphic GaAs has been developed. The Swt-LNA covers 800 MHz to 8000 but the primary application focus is 2500 MHz. In gain mode operates on a single 3V supply and current (thus output IP3) can be adjusted from 5 60 mA (input IP3=+1 +15 dBm). provides typical 1.4 dB noise figure 14 gain. When control pin sets LNA 0 mA, goes automatically into bypass mode. Bypass typically 2 loss +35 dBm IIP3. IC packaged in low cost mm sq....

The development of millimeter wave systems is driven by the strong trend towards new communication generations and especially emerging joint radar design approach. Safety critical applications like platooning or intersection assistance will significantly benefit from combination sensing communication. This requires that both operate on same frequency bands either in a co-design, cooperation even coexistence, using hardware. However, each technology has its own requirements. While performs...

Abstract Microwave Materials such as Rogers RO3003 are subject to process-related fluctuations in terms of the relative permittivity and dielectric loss. The behavior high frequency circuits like patch-antenna arrays their distribution networks is dependent on effective wavelength. Therefore, complex will influence resonance beam direction antennas. This paper presents a grounded coplanar waveguide based sensor, which can measure at 77 GHz, well other frequencies, by applying it top...

Abstract. The development of millimeter wave systems is driven by the strong trend toward new communications generations and especially emerging joint radar design approach. Safety-critical applications like platooning or intersection assistance will significantly benefit from combination sensing communications. While performs a channel measurement thus, needs wide field view (especially in city/intersection scenarios), aims to minimize interference for other not addressed receivers (e. g....

A novel monolithic integrated active mixer/LNA utilizing advanced pseudomorphic GaAs FETs has been developed for a mobile wireless receiver. RF coverage is 900 MHz to 2400 MHz. The operates on single 3 volt supply at 7 mA. mixer provides 4 dB conversion gain with -10 dBm LO drive. LNA 1.6 noise figure and 14 gain. die small packaged in the SSOP-16 plastic package keep costs low. This only PHEMT known provide such performance from DC requirement.

A novel monolithic integrated active mixer/LNA utilizing advanced pseudomorphic GaAs FETs has been developed. RF frequency coverage is 900 MHz to 2400 MHz. The Mixer/LNA operates on a single 3 Volt supply at 7 mA. mixer provides 4 dB conversion gain with -10 dBm LO drive. LNA 1.6 noise figure and 14 gain. die packaged in the SSOP-16 plastic package keep costs low. This only PHEMT known provide such performance from small DC requirement.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML"...

This paper presents an accurate free space method for material characterization eliminating the problem of required precise orientation between and antennas expanding unambiguous range electrical thick samples. It includes theoretical considerations measurement results four different materials. Overall, a maximum uncertainty 0.0153 relative permittivity 0.001 loss tangent in W-band can be achieved. Depending on variation material's thickness, implemented setup changes lead to reduction 8 58%.

In this paper a 60 GHz bistatic reconfigureable six-port radar for high precision measuring is presented. The front-end designed in substrate-integrated waveguide technology including coupler, attenuator and transmission lines. core of the integrated receiver MMIC passive structure, LNA four detectors. It has been using 0.13 μm SiGe BiCMOS process. A BGT60, stabilized by PLL-circuit, generates transmit signal vivaldi antennas. system includes also baseband circuit with adjustable...

This paper describes the design and characterization of three different compact low-cost substrate integrated waveguide (SIW) leaky-wave antennas on a RO4350B substrate. In order to increase gain basic antenna, two arrays consisting multiple parallel fed SIW lines are formed. Measurements both return loss radiation pattern were performed for all antenna structures around 122.5GHz show good agreement with numerical results. The maximum realized has been determined be slightly above 16dBi.

This paper presents the design of a linearly polarized electronically reconfigurable transmitarray in K-band for beam steering applications. The is linear arrangement five unit cells. Each cell provides continuous phase tuning range 360° which has been confirmed with numerical and experimental results. cells are formed multiple single layers RF-laminate varactor loaded patches as tunable elements slot aperture coupling. separated by metal sheets provided apertures. designed ±30 <sup...

This paper describes the design of two sensors for in-line material characterization bulk and metallized dielectrics around 10GHz 77GHz in order to determine relative permittivity RF substrates. The are based on a resonant grounded coplanar waveguide structure can be applied top under test. shift resonance frequency between loaded unloaded resonator is evaluated by 3D full wave simulations permittivity. basic sensor improved inline printed circuit boards clearance area filling air gaps....

This paper presents the design of several two element antenna arrays in an eWLB package for 61 GHz radar applications. The are either formed dipoles or folded dipoles. Different feeding structures were developed order to match MMICs with differential single-ended ports. Measurements both insertion loss and radiation pattern performed five different arrays. measurement results good agreement previously simulations.

Abstract This paper describes the design and characterization of a compact substrate integrated waveguide (SIW) fed antenna for 122 GHz industrial, scientific, medical band. The use single RO4350B layer SIW feeding ensure low-cost fabrication. Two versions are presented differing in gain size. For measurement purpose, transition from rectangular to is introduced. Measurements radiation pattern have been performed show good agreement with numerical results both antennas an up 7.14 dBi.

A novel MMIC bias network topology utilizing FETs has been developed. The is very compact, providing low DC path loss with high, broad band RF isolation. This consists of two and a capacitor, implemented in pseudomorphic HEMT. useful multi-stage amplifiers where stage-to-stage isolation critical to system stability performance. VGA (Variable gain amplifier) shown measured results as application example the network. There no other known published information or patents on this topology.