22.7-dB Gain $-$19.7-dBm $ICP_{1{\rm dB}}$ UWB CMOS LNA

Pepe, Domenico; Zito, Domenico

doi:10.1109/tcsii.2009.2027943

Cited by 31 publications

(17 citation statements)

References 14 publications

(10 reference statements)

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“…The antenna was simulated and optimized by means of Momentum by Agilent Technologies®. A differential topology has been adopted in accordance with the fully differential topology of receiver and transmitter of the SoC UWB radar [6,7]. Each lobe of the antenna consists of a semicircle (radiating part) and a triangle which provide a smooth transition towards the microchip pins.…”

Section: Introduction N February 2002 the Federal Communicationsmentioning

confidence: 99%

Planar Differential Antenna for Short-Range UWB Pulse Radar Sensor

Pepe¹,

Vallozzi

Rogier

et al. 2013

Antennas Wirel. Propag. Lett.

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Abstract-A novel planar differential ultra-wideband (UWB) antenna was designed and implemented on low-cost FR4 substrate and characterized experimentally. The dedicated design was motivated by the implementation of a UWB pulse radar sensor obtained by co-integrating a system-on-a-chip UWB pulse radar packaged in QFN32 package with the proposed antenna, one for the transmitter and one for the receiver. The experimental results confirm the predictions obtained by simulations, and the effectiveness of the novel antenna design for the implementation of low-cost short-range pulse radar sensor was validated by field operational tests.Index Terms-Ultra-wideband (UWB), planar antenna, differential antenna, short-range radar, biomedical applications. . UWB devices transmit and receive extremely short radio-frequency pulses, with time duration in the range from tens of picoseconds to tens of nanoseconds. As a consequence, the frequency spectrum of the transmitted signal has very wide band occupancy (several GHz) and very low power spectral density (PSD). The maximum in-band (3.1-10.6 GHz) allowed equivalent isotropic radiated power (EIRP) spectral density is -41.3 dBm/MHz. According to the FCC definitions, a UWB system is any radio system operating in a bandwidth greater or equal to 500 MHz, or with a fractional band greater or equal to 10%, operating in the above spectrum region. This is a key enabling radio technology for several unlicensed commercial applications, such as ground penetrating radar (GPR) systems, wall and through wall imaging systems, surveillance systems, high data rate Recently the first system-on-a-chip (SoC) UWB pulse radar, operating in compliance with the FCC mask, was implemented in 90 nm CMOS technology by our research group [2]. The entire UWB pulse radar sensor was implemented by co-integrating the radar microchip above and two novel planar differential antennas (transmitting and receiving) designed and realized on FR4 substrate. This paper addresses the design, simulation and experimental characterization of the novel UWB antenna, which was not reported in our previous publications focused exclusively on the SoC implementation of the radar microchip [2], and on the functional and field operational tests for respiratory rate detections [3], whose results will be not repeated here.The paper is organized as follows. Section II reports the description of the novel antenna design. Section III, reports the results of simulations and measurements. Finally, in Section IV, the conclusions are drawn.

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Section: Introduction N February 2002 the Federal Communicationsmentioning

confidence: 99%

Planar Differential Antenna for Short-Range UWB Pulse Radar Sensor

Pepe¹,

Vallozzi

Rogier

et al. 2013

Antennas Wirel. Propag. Lett.

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“…In a direct-conversion receiver, output matching is not a major concern, as LNA is connected on-chip to the next stage in the receiver chain [15]. For the UWB LNA, low NF is another important challenge which is dominated by the input CS stage [11]. From Fig.…”

Section: Simulation Results and Discussionmentioning

confidence: 99%

“…1b and c clearly show cascode gain and NF with and without L x against frequency. In absence of an inter-stage inductor L x , simulation results show a gain roll-off problem in the mid-frequency region (6)(7)(8)(9)(10)(11)(12)(13)(14). Although, both the gain and NF improves, when an inter-stage inductor L x is introduced in the cascode topology.…”

Section: Research Articlementioning

confidence: 99%

“…However, more number of inductors can increase overall Si chip area, which can lead to a higher fabrication cost. In various LNA topologies [1][2][3][4][5][6][7][8][9][10][11][12][13], most UWB LNAs have achieved <15 dB of S 21 and an average NF of 5 dB [5,8]. Since, an RF mixer in a directconversion receiver has a high value of NF at low frequencies and the receiver NF is approximately degraded by 3.6 dB because of flicker noise [9].…”

Section: Introductionmentioning

confidence: 99%

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A 0.6 V, low‐power and high‐gain ultra‐wideband low‐noise amplifier with forward‐body‐bias technique for low‐voltage operations

Pandey

Singh

2015

IET Microwaves, Antennas & Propagation

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A two-stage common-source (CS) low-noise amplifier (LNA) that uses a forward-body-bias technique in N-type metal-oxide semiconductor devices and intended to achieve a high gain and low power consumption is proposed in this study for ultra-wideband (UWB) applications. Its first stage yields an exceptionally high gain because of high transconductance (g m1 = 16 mS) of the input device. It also shows simultaneous wideband input matching and lownoise figure (NF) characteristics with the aid of source degenerated inductors. A simple source degenerated CS topology with the shunt-peaking inductor L d2 is designed as the second stage to enhance the gain response at high frequencies. Using a standard 90 nm complementary metal-oxide semiconductor process, the proposed UWB LNA achieves a gain S 21 ≥ 20 dB in the frequency range of 3.1-10.6 GHz, while consuming only 12.6 mW power from a 0.6 V supply voltage. The simulation results show a minimum NF (NF min ) below 1.7 dB in the frequency range of 3.1-10.6 GHz and input return loss S 11 < −10 dB in the frequency range of 3.5-10 GHz. When a two tone test is performed with a frequency spacing of 2 MHz, a high value of third-order input intercept point of −8 dBm is also achieved.

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“…Other key aspects are the pulse propagation, packaging and antenna integration. Thanks to the successful implementation of the most critical building blocks [2][3][4], in the recent years our research group presented the first implementation, including experimental evidence and compliance to Federal Communication Committee (FCC) UWB spectrum mask, of a SoC UWB pulse radar based on a correlation receiver, in 90 nm CMOS technology by ST-Microelectronics [5,6]. In particular, the circuit design aspects regarding the SoC implementation of the radar microchip in 90 nm bulk CMOS technology were presented in [5].…”

Section: Introductionmentioning

confidence: 99%

UWB pulse radio transceivers and antennas: Considerations on design and implementation

Zito¹,

Pepe²

2014

The 8th European Conference on Antennas and Propagation (EuCAP 2014)

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This paper reports some considerations regarding the implementation of system-on-a-chip ultra-wideband pulse radar transceivers in nano-scale silicon technology, with emphasis on radars and their integration with planar antennas. In particular, it addresses some of the key design aspects and solutions proposed for the pulse generation, signal propagation and integration with antennas. The effectiveness of the adopted approach has been confirmed by means of direct measurements, as well as functional tests of the radar transceiver and field operational tests of the entire radar sensor for contactless motion detection.

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22.7-dB Gain $-$19.7-dBm $ICP_{1{\rm dB}}$ UWB CMOS LNA

Cited by 31 publications

References 14 publications

Planar Differential Antenna for Short-Range UWB Pulse Radar Sensor

Planar Differential Antenna for Short-Range UWB Pulse Radar Sensor

A 0.6 V, low‐power and high‐gain ultra‐wideband low‐noise amplifier with forward‐body‐bias technique for low‐voltage operations

UWB pulse radio transceivers and antennas: Considerations on design and implementation

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