High peak power UWB-RFID transmitter tag for long range applications

Ansari, M. Arif Hussain; Sharma, Manmohan; Law, Choi Look

doi:10.1109/piers-fall.2017.8293474

Cited by 5 publications

(13 citation statements)

References 9 publications

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“…The digital data pulse is first fed to tunable delay cells (Block D in Figure 5), which provides a finite time delay (steering delay) to the data pulses. The IR-UWB pulse generator (Block PG in Figure 5) uses the falling edge of delayed data pulses and generates corresponding delayed IR-UWB pulses [22]. The delayed IR-UWB pulses are transmitted through equally spaced antennas, which superimpose spatially to form a focused IR-UWB beam in the steered direction.…”

Section: Ir-uwb Beamformingmentioning

confidence: 99%

“…The time-limited Gaussian-envelope multicycle IR-UWB pulse in Eq. (4) is used to approximate the generated pulse as reported in [22]. The pulse given in Eq.…”

Section: Simulations and Analysismentioning

confidence: 99%

“…The authors of this paper have developed a high voltage IR-UWB pulse generator which is fabricated using 2 µm GaAs HBT, and details can be found in [22]. The reported pulse generator can produce an IR-UWB pulse with 10.2 V (24.15 dBm) peak-to-peak voltage amplitude (V p-p ), which is the highest reported value to the best of the authors' knowledge.…”

Section: Introductionmentioning

confidence: 95%

“…However, there are some limitations with the existing IR-UWB systems, which restrict the technology to encompass an even bigger market size. The major limitation associated with the current state of the art technology is limited output peak power [17][18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

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Beam-Pattern Analysis of Multi-Beam High Peak Power Ir-Uwb Transmitter Tag for Indoor Positioning and Tracking System

Ansari¹,

Law²

2020

PIER B

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The precise positioning of an autonomous robot in the wireless sensor network with a high refresh rate is important for well-ordered and efficient systems. An orthogonally transmitted simultaneous multi-beam system improves the geometric dilution of precision (GDOP) and expedites the refresh rate of the system. In this paper, the beam-pattern analysis of an electronically steerable multibeam impulse radio ultra-wideband (IR-UWB) transmitter tag is presented and demonstrated. The multi-beam transmitter tag is optimized to improve the real-time positioning accuracy of an autonomous robot for an indoor positioning and tracking system. Two linear arrays of four elements with an interelement spacing of 18 cm and 10.2 cm are proposed and optimized. The array with spacing 10.2 cm is intentionally configured to produce orthogonal beams, which eventually provides better geometric dilution of precision. The beam steering-angle analysis is performed to better utilize the steering delay range and scanning angle range. The radiation intensity in the direction of the transmitted beam is calculated. Consequently, an intensity table for the Gaussian-modulated multi-cycle IR-UWB beamforming array is proposed. The intensity table gives an easier way to calculate the peak intensity and the number of cycles of the radiated IR-UWB pulse in the transmitted beam direction. The proposed beamforming transmitter arrays are observed to achieve the scanning range from −60 • (−90 •) to +60 • (+90 •) with a scanning resolution of 5 • and 8 • in the measurements.

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Section: Ir-uwb Beamformingmentioning

confidence: 99%

“…The time-limited Gaussian-envelope multicycle IR-UWB pulse in Eq. (4) is used to approximate the generated pulse as reported in [22]. The pulse given in Eq.…”

Section: Simulations and Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Beam-Pattern Analysis of Multi-Beam High Peak Power Ir-Uwb Transmitter Tag for Indoor Positioning and Tracking System

Ansari¹,

Law²

2020

PIER B

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“…[1,2]. However, the limited peak output power of the IR-UWB pulse restricts it from being a robust system solution for deployment in a dense cluttered hostile environment [3][4][5][6][7][8]. The IR-UWB pulse generation can be broadly classified into four major categories, namely up-conversion, spectrum filtering, digital edge combining, and distributed waveform synthesiser [9].…”

Section: Introductionmentioning

confidence: 99%

Circuit analysis and optimisation of the high‐voltage high‐efficiency IR‐UWB pulse generator for ranging and radar application

Ansari

Law

2020

IET Circuits, Devices & Systems

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An in-depth circuital analysis of an energy-efficient high peak power impulse radio ultra-wideband (IR-UWB) pulse generator monolithic microwave integrated circuit (MMIC) design is presented. The proposed IR-UWB pulse generation process is explained in detail. A trade-off between the peak output power level and the frequency of operation is discussed. The proposed circuit is optimised for the highest possible peak output power in the 3-5 GHz UWB band for ranging and radar application. The presented IR-UWB pulse former makes use of the cascode heterojunction bipolar transistor (HBT) configuration for signal scaling operation instead of the common emitter configuration. The proposed cascode pair configuration results in higher output voltage swing as well as reduced power consumption. The effect of coupling capacitors on amplification factor of the pulse former stages as well as impedance profile of the distributed transmission line is discussed in great detail. The temperature-dependent parasitic component in the proposed circuit is studied. Its effect on the transient behaviour of the proposed IR-UWB pulse generator is analysed, which is important for IR-UWB beamforming applications. The required mathematical model for the parasitic effect is derived and explained.

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Beamforming UWB-IR transmitter for NLOS indoor positioning and tracking application

Ansari¹,

Law²

2018

2018 IEEE MTT-S International Wireless Symposium (IWS)

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High peak power UWB-RFID transmitter tag for long range applications

Cited by 5 publications

References 9 publications

Beam-Pattern Analysis of Multi-Beam High Peak Power Ir-Uwb Transmitter Tag for Indoor Positioning and Tracking System

Beam-Pattern Analysis of Multi-Beam High Peak Power Ir-Uwb Transmitter Tag for Indoor Positioning and Tracking System

Circuit analysis and optimisation of the high‐voltage high‐efficiency IR‐UWB pulse generator for ranging and radar application

Beamforming UWB-IR transmitter for NLOS indoor positioning and tracking application

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