RF multi-function chip at Ku-band

Chakravarti, Madhumita; Reddy, K Suman; Kirty, V.S.R.

doi:10.1109/imarc.2015.7411409

Cited by 3 publications

(2 citation statements)

References 3 publications

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“…The most diffused solutions are proposed for sub-GHz connections and for the spectrum portion from 2.4 GHz to 2.5 GHz where several standards operate: BT/BLE, ZigBee, Wi-Fi according to IEEE 802.11 b/g/n. Multi-standard chip are also available [6]. Most of these devices are designed to sustain a consumer temperature range (85 0 C maximum) and for cost reasons they feature a plastic package, e.g.…”

Section: Wireless Connection Capability Of Internet-on-chip Cots Devicesmentioning

confidence: 99%

Radio link design framework for WSN deployment and performance prediction

Saponara

Giannetti

2017

SPIE Proceedings

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For an easy implementation of wireless sensor and actuator networks (WSAN), the state-of-the-art is offering single-chip solutions embedding in the same device a microcontroller core with a wireless transceiver. These internet-on-chip devices support different protocols (Bluetooth, ZigBee, Bluetooth Low Energy, sub-GHz links), from about 300 MHz to 6 GHz, with max. sustained bit-rates from 250 kb/s (sub-GHz links) to 4 Mb/s (Wi-Fi), and different trade-offs between RX sensitivity (from -74 to -100 dBm), RX noise figure (few dB to 10 dB), maximum TX power (from 0 to 22 dBm), link distances, power consumption levels (from few mW to several hundreds of mW). One limit for their successful application is the missing of an easy-to-use modeling and simulation environment to plan their deployment. The need is to predict, before installing a network, at which distances the sensors can be deployed, the real achievable bit-rate, communication latency, outage probability, power consumption, battery duration. To this aim, this paper presents the H 2 AWKS (Harsh environment and Hardware Aware Wireless linK Simulator) simulator, which allows the planning of a WSAN taking into account environment constraints and hardware parameters. Applications of H 2 AWKS to real WSAN case studies prove that it is an easy to use simulation environment, which allows design exploration of the system performance of a WSAN as a function of the operating environment and of the hardware parameters of the used devices.Keywords: wireless sensor and actuator networks (WSAN), harsh environment, network simulations, internet-on-chip Although a large set of embedded devices for WSANs exist, a severe limit for their application is the lack of an easy-touse modeling and design framework for planning their deployment. The need is to predict, before installing a network, at which distances the sensors can be deployed, the real achievable bit-rate, the real communication latency, the outage probability, the power consumption (and hence battery duration). To this aim, we have developed the H 2 AWKS (Harsh environment and Hardware Aware Wireless linK Simulator) environment, which allows the planning of a WSAN taking into account: 1) environment constraints, e.g. target Bit Error Rate (BER), presence of time-dispersive and frequency-selective channels, shadowing and occlusion, propagation losses with/without line-of-sight (LOS/NLOS), single or multi hop, outdoor or indoor, in presence of interference sources in the same band; 2) hardware parameters, e.g. RX noise figure and sensitivity, TX power, operating frequencies, gains; 3) network parameters, e.g. network topology, modulation and channel coding scheme (MCS), packet size. Hereafter, Section 2 reviews the wireless connection capability offered by internet-on-chip COTS devices. Section 3 discusses the set of models and equations used within H 2 AWKS. Section 4 shows the simulation results using H 2 AWKS. Conclusions are drawn in Section 5.

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Section: Wireless Connection Capability Of Internet-on-chip Cots Devicesmentioning

confidence: 99%

Radio link design framework for WSN deployment and performance prediction

Saponara

Giannetti

2017

SPIE Proceedings

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“…Consequently, the size of T/R modules can be considerably reduced [1]. Moreover, the reliability of T/R modules is also enhanced due to the simplicity of the RF interconnection structures [2].…”

Section: Introductionmentioning

confidence: 99%

An X-Band High-Accuracy GaAs Multifunction Chip With Amplitude and Phase Control

et al. 2023

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This paper presents a high-accuracy multifunction chip (MFC) with amplitude and phase control in X-band. The MFC is designed with a common leg structure and incorporates a 6-bit attenuator (ATT), a 6-bit phase shifter (PS), two gain compensation amplifiers (GCAs), three single pole double throw switches (SPDTs), and fourteen logic control circuits. However, cascading these blocks causes the change of the terminal impedances of the ATT and PS, which is detrimental to the accuracy. To solve this problem, the extra tunable interstage matching networks (IMNs) are introduced between each ATT and PS cell to alleviate the terminal impedance changes. The compensation capacitances are also applied to ATT to reduce the insertion phase shift. The receive and transmit modes switching is achieved by using four SPDTs. In addition, the resistance feedback is used in GCAs to compensate for passive losses and provide gain to the MFC. To validate the design scheme, the proposed MFC is fabricated in 0.15-m GaAs pseudomorphic high-electronmobility transistor (pHEMT) process. The measured results show that the MFC has excellent accuracy due to the introduction of IMNs. In the range of 8-11 GHz, the measured maximum root-mean-square (RMS) amplitude error of the MFC is less than 0.28 dB, and the maximum RMS phase error is less than 3.3°. Moreover, the MFC is achieved with a compact layout of 4.3 mm × 2.85 mm. Excellent performance and compact size make the MFC greatly potential in spaceborne phased array applications.

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