This paper describes the design and realization of a 5.6-GHz ultrawide-bandwidth-based position measurement system. The system was entirely made using off-the-shelf components achieves centimeter-level accuracy in an indoor environment. It is based on asynchronous modulated pulse round-trip time measurements. Both level details are described along with experimental results including estimates uncertainties.

Wireless sensor networks are becoming widely diffused because of the flexibility and scalability they offer. However, distributed measurements significant only if readout is coupled to time information. For this reason, network-wide synchronization main concern. The objective paper exploit a very simple hardware implementation an IR-UWB radio for realizing accurate system wireless sensors. proposed solution relies on commercial-off-the-shelf discrete electronic components (rather than...

The work presented in this paper is related with time synchronization for wireless networks. In particular, it focused on the proposal and experimental evaluation of a low-cost high precision timestamping technique based Ultra Wide Band (UWB) signalling. recent years, use such systems has gained an increasing success thanks to their robustness interferers multipath. new hybrid node proposed; traditional IEEE802.15.4 radio, reference physical layer sensor networks, supported by UWB...

This paper presents the first experimental results of a very compact L-band diplexer based on TM <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">010</sub> mode dielectric resonators for high-power on-board satellite applications. A resonator (relative permittivity >40) operating with represents best trade-off in terms volume occupation and unloaded Q-factor (above 2000) among several types considered proposed application. The type input coupling...

This paper presents the design and testing of a MEMS Varactor for microwave applications. The tunable capacitor consists movable bridge shunt-connected to 50Ω coplanar line on HR-silicon substrate. is based double actuation mechanism with mechanical central bond that inhibits pull-in allows theoretically infinite tuning ratio. measurements show total capacitance ratio 5.7 2.6 continuous 0-50V operating voltage. measured values are in range 105fF-615fF resonant frequency above 30GHz downstate...

Abstract The design and first experimental results of Tx Rx L-band bandpass filters for a high-power satellite diplexer are presented in this paper. Designed the framework an ESA ARTES AT project, based on TM 010 mode dielectric resonators. These resonators allow better terms volume occupation with respect to other still maintaining high Q-factor values (&gt;2000). Volume saving above 30% is achieved standard coaxial filters. filter geometries materials have been chosen order improve...

Abstract This paper presents the modeling, simulations, and measurements of a compact multiband microelectromechanical (MEMS)‐based LC tank resonator suitable for low phase noise voltage‐controlled oscillators (VCOs). The is based on high‐ Q spiral inductor high capacitance ratio varicap fully integrated in FBK‐irst (Fondazione Bruno Kessler) MEMS manufacturing process. design double‐actuation mechanism with mechanical central bond that inhibits pull‐in allowing theoretically infinite tuning...

This paper presents the modeling, manufacturing, and testing of a micro-electromechanical system (MEMS)-based LC tank resonator suitable for low phase-noise voltage-controlled oscillators (VCOs). The device is based on variable MEMS varactor in series with an inductive coplanar waveguide line. Two additional parallel stubs controlled by two ohmic switches have been introduced order to increase tunability. was fabricated using FBK-irst process high resistivity (HR) silicon substrate. Samples...

This paper presents the modeling and simulations of compact multi-band MEMS based LC tank resonator suitable for very low phase-noise VCO. The is on a high-Q spiral inductor high capacitive ratio varicap fully integrated in FBK-irst manufacturing process. Simulation results show that allows an overall tuning range 60% frequency 2.15GHz-3.85GHz. Two separate regions continuous (9.5% 30%) allow to cover whole spectrum WiMAX IEEE802.11a/b/g/n. Theoretical quality factor (Q) about 60 calculated...

This paper presents the first experimental results of planar and low-consumption switchable stopband passband filter banks. The channels are based on microstrip reconfigurable filters with wide tuning range. devices properly designed for wideband applications in range 2GHz÷18GHz DC÷18GHz. Switchable tunable sub-bands selected by means digitally controlled switching matrices. In both cases high-Q varactor diodes used to tune frequency filters. measured rejection bank notched bands 500÷600MHz...

This paper presents the design and manufacturing of a novel Dual Gap MEMS varactor which operates before pull-in ensuring continuous tuning range. The device is based on interdigitated DC RF electrodes, allowing uniform distribution electrostatic force. tunable capacitor has been embedded in BEOL (Back End Of Line) metallization stack state art Si/SiGe BiCMOS semiconductor process for easy integration with MMIC. Two different variants have manufactured showing maximum capacitive ratio 2.12...

This paper presents the design, manufacturing and testing of a MEMS SP16T switch to be used in open loop reconfigurable antenna systems. It consists hybrid integration #5 SP4T switches (realized on HR Silicon substrate) multilayer substrate. The bilayer structure allows one avoid RF DC signal crossovers that could degrade performance. device is provided with SMA connectors Control Electronic Board operate standard 0-5V signals. A wideband was developed, working from up 10GHz. has been...

In this paper, a system for measuring moisture content of wood-chip samples is presented, based on propagation time measurements electromagnetic pulses in two wire probe. Both simulation and experimental results are reported, validated by concurrently performed TGA measurements. It shown that the proposed approach may be advantageous, since it features good sensitivity very high measurement speed.

In this paper the design and first experimental results of surface mountable bandpass filters in L- C- bands are presented. Used for frequency converters High Throughput Satellite (HTS) systems, L-band filter is centred at 960MHz with 500MHz bandwidth (FBW=52%) while band 5.35GHz 2.5GHz (FBW=47%). The presented outcomes an ESA ARTES AT project called SUMO (`Surface Mountable Filters Frequency Converters'). Pre-distorted characteristics proposed both C-band architectures order to obtain...

The bursting wireless communication market, including 5G, advanced satellite systems and COTM (Communication On Move) terminals, require ever more sophisticated functions, from multi-band multi-function operations to electronically steerable reconfigurable antennas, pushing technological developments towards the use of tunable microwave components circuits. Reconfigurability allows indeed for reduced complexity cost apparatuses. In this context, RF MEMS (Micro-Electro-Mechanical-Systems)...