Intermediate frequency zero-crossing detectors for Bluetooth enhanced data rate system

2007 ◽  
Vol 43 (15) ◽  
pp. 815
Author(s):  
T. Scholand ◽  
C. Spiegel ◽  
A. Burnic ◽  
A. Waadt ◽  
G.H. Bruck ◽  
...  
Keyword(s):  
Intermediate Frequency ◽  
Data Rate ◽  
Rate System ◽  
Zero Crossing

Applying Zero-Crossing Demodulation to the Bluetooth Enhanced Data Rate Mode

2006 ◽  
Author(s):  
Tobias Scholand ◽  
Admir Burnic ◽  
Christoph Spiegel ◽  
Andreas Waadt ◽  
Arjang Hessamian-Alinejad ◽  
...  
Keyword(s):  
Data Rate ◽  
Zero Crossing

Fully integrated 60 GHz transceiver in SiGe BiCMOS, RF modules, and 3.6 Gbit/s OFDM data transmission

2011 ◽  
Vol 3 (2) ◽  
pp. 139-145 ◽  
Author(s):  
Srdjan Glisic ◽  
J. Christoph Scheytt ◽  
Yaoming Sun ◽  
Frank Herzel ◽  
Ruoyu Wang ◽  
...  
Keyword(s):  
Data Transmission ◽  
Intermediate Frequency ◽  
Phase Locked Loop ◽  
Data Rate ◽  
Low Noise ◽  
60 Ghz ◽  
Fully Integrated ◽  
Front End ◽  
Free Data ◽  
Bicmos Technology

A fully integrated transmitter (TX) and receiver (RX) front-end chipset, produced in 0.25 µm SiGe:C bipolar and complementary metal oxide semiconductor (BiCMOS) technology, is presented. The front-end is intended for high-speed wireless communication in the unlicensed ISM band of 9 GHz around 60 GHz. The TXand RX features a modified heterodyne topology with a sliding intermediate frequency. The TX features a 12 GHz in-phase and quadrature (I/Q) mixer, an intermediate frequency (IF) amplifier, a phase-locked loop, a 60 GHz mixer, an image-rejection filter, and a power amplifier. The RX features a low-noise amplifier (LNA), a 60 GHz mixer, a phase-locked loop (PLL), and an IF demodulator. The measured 1-dB compression point at the TX output is 12.6 dBm and the saturated power is 16.2 dBm. The LNA has measured noise figure of 6.5 dB at 60 GHz. Error-free data transmission with a 16 quadrature amplitude modulation (QAM) orthogonal frequency-division multiplexing (OFDM) signal and data rate of 3.6 Gbit/s (without coding 4.8 Gbit/s) over 15 m was demonstrated. This is the best reported result regarding both the data rate and transmission distance in SiGe and CMOS without beamforming.

Optimal choice of intermediate frequency for zero-crossing detectors

2007 ◽  
Vol 43 (12) ◽  
pp. 678 ◽  
Author(s):  
A. Waadt ◽  
T. Scholand ◽  
C. Spiegel ◽  
A. Burnic ◽  
P. Jung
Keyword(s):  
Intermediate Frequency ◽  
Optimal Choice ◽  
Zero Crossing

scholarly journals High capacity data rate system: Review of visible light communications technology

2020 ◽  
Vol 18 (3) ◽  
pp. 100055
Author(s):  
Augustus Ehiremen Ibhaze ◽  
Patience Ebehiremen Orukpe ◽  
Frederick Obataimen Edeko
Keyword(s):  
Visible Light ◽  
High Capacity ◽  
Data Rate ◽  
Communications Technology ◽  
Visible Light Communications ◽  
Rate System ◽  
System Review ◽  
Capacity Data

Incorporating SDC Module for ISI Compensation for a Long-Haul Co-OFDM System

2018 ◽  
Vol 0 (0) ◽  
Author(s):  
Anu Chauhan ◽  
Arti Vaish
Keyword(s):  
Orthogonal Frequency Division Multiplexing ◽  
Dispersion Compensation ◽  
Data Rate ◽  
High Data Rate ◽  
Error Vector Magnitude ◽  
Ofdm System ◽  
Rate System ◽  
High Data ◽  
Ofdm Signal ◽  
Compensation Technique

AbstractWith the increase in demand of bandwidth hungry applications, it is recommended to develop a high data rate system for long-haul coherent optical orthogonal frequency division multiplexing (CO-OFDM). At a very high data rate, CO-OFDM signal experiences deterioration. At 50 Gbps, the signal experiences ISI effect and in order to overcome this ISI effect, a prolonged system has been developed to reach optimal ISI compensation technique. One of the prominent and competent techniques to enhance system performance is (SDCM) symmetrical dispersion compensation module. In order to make system more bandwidth efficient 4-QAM (Quadrature Amplitude Modulation) with gray coding is applied and manual adjustments are done at receiver phase to decrease error vector magnitude (EVM). OFDM data stream is successfully transmitted over a distance of 4,000 km to compete the demand of long-haul CO-OFDM system. With different launch powers and laser linewidths, the performance of the system is enhanced in terms of Q-factor, SNR and EVM.

Multi-Data-Rate System Performance of a 40-GHz All-Optical Clock Recovery Based on a Quantum-Dot Fabry–PÉrot Laser

2007 ◽  
Vol 19 (19) ◽  
pp. 1409-1411 ◽  
Author(s):  
V. Roncin ◽  
A. O'Hare ◽  
S. Lobo ◽  
E. Jacquette ◽  
L. Bramerie ◽  
...  
Keyword(s):  
Quantum Dot ◽  
System Performance ◽  
Data Rate ◽  
Optical Clock ◽  
Clock Recovery ◽  
Rate System ◽  
Fabry Perot ◽  
All Optical ◽  
Optical Clock Recovery
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