scholarly journals Sampled grating tunable twin-guide laser diodes with wide tuning range (≥40 nm) and large output power (≥10 mW)

2006 ◽  
Vol 3 (3) ◽  
pp. 403-406
Author(s):  
R. Todt ◽  
T. Jacke ◽  
R. Meyer ◽  
J. Adler ◽  
R. Laroy ◽  
...  
Keyword(s):  
Output Power ◽  
Tuning Range ◽  
Laser Diodes ◽  
Wide Tuning Range ◽  
Sampled Grating ◽  
Large Output

A Ku-band wide-tuning-range high-output-power VCO in InGaP/GaAs HBT technology

2015 ◽  
Vol 36 (6) ◽  
pp. 065010 ◽  
Author(s):  
Jincan Zhang ◽  
Yuming Zhang ◽  
Hongliang Lü ◽  
Yimen Zhang ◽  
Bo Liu ◽  
...  
Keyword(s):  
Output Power ◽  
Tuning Range ◽  
High Output Power ◽  
Wide Tuning Range ◽  
High Output ◽  
Ku Band

Next generation integrated SiGe mm-wave circuits for automotive radar sensors

2013 ◽  
Vol 5 (1) ◽  
pp. 43-48
Author(s):  
Nils Pohl ◽  
Herbert Knapp ◽  
Christian Bredendiek ◽  
Rudolf Lachner
Keyword(s):  
Output Power ◽  
Tuning Range ◽  
Supply Voltage ◽  
Frequency Doubler ◽  
Next Generation ◽  
Automotive Radar ◽  
Wide Tuning Range ◽  
Radar Sensors ◽  
Frequency Dividers

In this paper, radar transmitter circuits for next generation automotive radar sensors are presented. A 79 GHz radar transmitter with an output power of 14.5 dBm consuming only 165 mA (including frequency dividers) from a 3.3 V supply voltage clearly shows the advantage of using an improved SiGe technology with an fmax of 380 GHz. In addition, two radar transmitters for higher frequencies (around 150 GHz) based on frequency doubler circuits are showing the potential of SiGe technologies. The first transmitter achieves an output power of 3 dBm (single ended) at 144 GHz, whereas the second transmitters delivers a differential output power of 0 dBm at 150 GHz. Both transmitters achieve an ultra-wide tuning range of about 45 GHz.

scholarly journals A varactor tuned low-cost 24 GHz harmonic VCO

2006 ◽  
Vol 4 ◽  
pp. 21-24 ◽  
Author(s):  
M. O. Olbrich ◽  
L. Huang ◽  
E. M. Biebl
Keyword(s):  
Harmonic Oscillator ◽  
Output Power ◽  
Tuning Range ◽  
Low Cost ◽  
The Other ◽  
High Output Power ◽  
Wide Tuning Range ◽  
Output Frequency ◽  
24 Ghz ◽  
High Output

Abstract. We present a low-cost 24 GHz VCO that is based on a microstrip design combined with discrete packaged devices. The output frequency is generated by a harmonic oscillator. The tunabilty was reached using a varactor diode. Two versions of the VCO were built, one has a wide tuning range of 1.1 GHz and the other one has a high output power of 3.7 dBm.

Design of Sampled Grating Distributed Bragg Reflector Laser with Wide Tuning Range in L-band

2020 ◽  
Vol 41 (10) ◽  
pp. 1279-1286
Author(s):  
Chang-da XU ◽  
◽  
Wei CHEN ◽  
De-chao BAN ◽  
Wen-hui SUN ◽  
...  
Keyword(s):  
Tuning Range ◽  
Bragg Reflector ◽  
Wide Tuning Range ◽  
Distributed Bragg Reflector ◽  
Sampled Grating ◽  
L Band

scholarly journals Sampled grating tunable twin-guide laser diodes with over 40-nm electronic tuning range

2005 ◽  
Vol 17 (12) ◽  
pp. 2514-2516 ◽  
Author(s):  
R. Todt ◽  
T. Jacke ◽  
R. Meyer ◽  
J. Adler ◽  
R. Laroy ◽  
...  
Keyword(s):  
Tuning Range ◽  
Laser Diodes ◽  
Electronic Tuning ◽  
Sampled Grating

scholarly journals A Novel Fast-Locking ADPLL Based on Bisection Method

Electronics ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 1382
Author(s):  
Xiaoying Deng ◽  
Huazhang Li ◽  
Mingcheng Zhu
Keyword(s):  
High Performance ◽  
Tuning Range ◽  
Frequency Control ◽  
Control Word ◽  
Cmos Process ◽  
Bisection Method ◽  
Reference Frequency ◽  
Wide Tuning Range ◽  
Cascade Structure ◽  
And Control

Based on the idea of bisection method, a new structure of All-Digital Phased-Locked Loop (ADPLL) with fast-locking is proposed. The structure and locking method are different from the traditional ADPLLs. The Control Circuit consists of frequency compare module, mode-adjust module and control module, which is responsible for adjusting the frequency control word of digital-controlled-oscillator (DCO) by Bisection method according to the result of the frequency compare between reference clock and restructure clock. With a high frequency cascade structure, the DCO achieves wide tuning range and high resolution. The proposed ADPLL was designed in SMIC 180 nm CMOS process. The measured results show a lock range of 640-to-1920 MHz with a 40 MHz reference frequency. The ADPLL core occupies 0.04 mm2, and the power consumption is 29.48 mW, with a 1.8 V supply. The longest locking time is 23 reference cycles, 575 ns, at 1.92 GHz. When the ADPLL operates at 1.28 GHz–1.6 GHz, the locking time is the shortest, only 9 reference cycles, 225 ns. Compared with the recent high-performance ADPLLs, our design shows advantages of small area, short locking time, and wide tuning range.

Sign in / Sign up

Export Citation Format

Share Document