High data rate and energy efficient configurable IR-UWB transmitter with an integrated balun
Küçük Resim Yok
Tarih
2024
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier GmbH
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
This paper presents a novel, digitally configurable, switching oscillator-based impulse radio ultra-wideband (IR-UWB) transmitter that is robust to process variations. The pulse width and pulse position properties of the output waveform are configurable to ensure operation for the desired bandwidth and output pulse energy values. The architecture is based on a cross-coupled LC voltage-controlled oscillator (LC VCO) implemented with a custom-designed on-chip balun at a center frequency of 2.4 GHz. With the usage of this on-chip balun, the need for an extra buffer stage is eliminated, and the highest possible efficiency is achieved with the proper turns ratio selected. The generated digital control pulse signals are also used to ensure fast start-up and UWB operation while maintaining low power consumption with an implemented on/off tail switching scheme. The presented IR-UWB transmitter that occupies a total area of 0.35 mm2 is fabricated in the United Microelectronics Corporation (UMC) 180-nm mixed-mode/radio frequency (RF) CMOS process. The measured output voltage swing of the fabricated transmitter is 0.812 V on a 50-? load for the 200 Mb/s data rate, and the bandwidth is measured as 902 MHz. The achieved frequency tuning range is 1 GHz and the fabricated transmitter can drive 50 ?, 75 ? and 100 ? loads with measured efficiency values 4.16%, 5.76%, and 4.05%, respectively. Compared to other works in the literature, this design achieves a higher output pulse energy at a higher data rate while maintaining low power consumption and, thus, high efficiency. © 2024 Elsevier GmbH
Açıklama
Anahtar Kelimeler
Custom Designed Balun, Frequency Tuning, High Data Rate, High Speed, Impulse Radio Ultra-Wideband (Ir-Uwb), Pulse Generation, Rf Cmos, Switched Lc Oscillator, Transmitter, Tunable Pulse Position, Tunable Pulse Width, Bandwidth, Circuit Oscillations, Cmos İntegrated Circuits, Digital Control Systems, Digital Radio, Digital Storage, Electric Power Utilization, Energy Efficiency, Impulse Noise, Microelectronics, Oscillistors, Radio Receivers, Radio Transmission, Tuning, Ultra-Wideband (Uwb), Variable Frequency Oscillators, Custom Designed Balun, Frequency-Tuning, High Data Rate, High Data-Rates, High Speed, Impulse Radio, Impulse Radio Ultra-Wideband, Lc-Oscillators, Pulse Generation, Pulse Positions, Radio Frequency Cmos, Switched Lc Oscillator, Tunable Pulse Position, Tunable Pulse Widths, Tunables, Ultrawide Band, Transmitters
Kaynak
AEU - International Journal of Electronics and Communications
WoS Q Değeri
Scopus Q Değeri
Q2
Cilt
179
