Tunable InGaN quantum dot microcavity light emitters with 129 nm tuning range from yellow-green to violet
Sign Up to like & getrecommendations! Published in 2017 at "Applied Physics Letters"
DOI: 10.1063/1.4994945
Abstract: An electrically pumped wavelength-tunable InGaN quantum dot (QD) based microcavity (MC) lighter emitter with a large tuning range of 129 nm was demonstrated. The multi-mode emission spectrum was tuned by injected current from 564 nm (yellow-green) to… read more here.
Keywords: yellow green; range; tuning range; ingan quantum ... See more keywords
Graphene-enabled active terahertz focusing with wide tuning range
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Physics D: Applied Physics"
DOI: 10.1088/1361-6463/ac1008
Abstract: Tunable terahertz (THz) metalenses using graphene have the advantages of good tunability, fast tuning speed, and ultra-small thickness for compact THz photonic systems. However, it is still a great challenge to realize such an active… read more here.
Keywords: wide tuning; tuning range; graphene; physics ... See more keywords
A Tunable Dual-Band Bandpass-to-Bandstop Filter Using p-i-n Diodes and Varactors
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Access"
DOI: 10.1109/access.2018.2862887
Abstract: In this paper, a tunable dual-band bandpass-to-bandstop filter and its analysis are proposed. The bandpass-to-bandstop transformation could be obtained by changing the state of the p-i-n diode. Using two sets of half-wavelength resonators loaded with… read more here.
Keywords: bandpass bandstop; band; bandpass; tuning range ... See more keywords
A Horst-Type Power Divider With Wide Frequency Tuning Range Using Varactors
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Access"
DOI: 10.1109/access.2018.2889222
Abstract: This paper presents a novel power divider with a wide frequency tuning range. In our previous work, a pair of capacitors were connected in parallel with the front transmission lines of a Trantanella-type power divider… read more here.
Keywords: power divider; frequency tuning; tuning range; power ... See more keywords
Design of a Neural Network-Based VCO With High Linearity and Wide Tuning Range
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Access"
DOI: 10.1109/access.2019.2915335
Abstract: In this paper, a 2 GHz LC-VCO with neural network (Multilayer Perceptron) has been designed in a 0.13 ţm CMOS technology. With the integrated neural network, the linearity and tuning range of the LC-VCO has… read more here.
Keywords: neural network; tuning range; design; network ... See more keywords
A Continuously Tunable Unequal Power Divider With Wide Tuning Range of Dividing Ratio
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Microwave and Wireless Components Letters"
DOI: 10.1109/lmwc.2018.2836222
Abstract: In this letter, a dividing ratio continuously tunable power divider with a wide tuning range is presented. A pair of tunable shunt stub is utilized to achieve different power dividing ratios and good input matching… read more here.
Keywords: continuously tunable; dividing ratio; tuning range; ratio ... See more keywords
Tuning Range Extension of a Transformer-Based Oscillator Through Common-Mode Colpitts Resonance
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Circuits and Systems I: Regular Papers"
DOI: 10.1109/tcsi.2016.2625199
Abstract: In this paper, we propose a method to broaden a tuning range of a CMOS LC-tank oscillator without sacrificing its area. The extra tuning range is achieved by forcing a strongly coupled transformer-based tank into… read more here.
Keywords: mode; common mode; tuning range; oscillator ... See more keywords
A Wide Tuning Range, Low Phase Noise, and Area Efficient Dual-Band Millimeter-Wave CMOS VCO Based on Switching Cores
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Transactions on Circuits and Systems I: Regular Papers"
DOI: 10.1109/tcsi.2019.2901253
Abstract: This paper presents a millimeter-wave wide tuning range voltage-controlled oscillator (VCO) incorporating two switchable decoupled VCO cores. When the first core is switched on producing the low frequency band (LFB) signal and the second core… read more here.
Keywords: phase noise; tuning range; wide tuning; band ... See more keywords
Reconfigurable BPF With Constant Center Frequency and Wide Tuning Range of Bandwidth
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Transactions on Circuits and Systems II: Express Briefs"
DOI: 10.1109/tcsii.2019.2938741
Abstract: A reconfigurable bandpass filter (BPF) with constant centre frequency and wide tuning range of bandwidth is presented. The proposed filter is based on the novel configuration of two modified asymmetrical $\pi $ -sections with folded… read more here.
Keywords: frequency; tuning range; bpf constant; bandwidth ... See more keywords
Series Resonator Mode Switching for Area-Efficient Octave Tuning-Range CMOS $LC$ Oscillators
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Microwave Theory and Techniques"
DOI: 10.1109/tmtt.2016.2647723
Abstract: Integrated oscillators with octave frequency tuning range (FTR) are desirable for wireless transceivers supporting multiple frequency bands. In this paper, we describe a wide-FTR CMOS voltage-controlled oscillator (VCO) based on a novel area-efficient series resonator… read more here.
Keywords: ftr; octave tuning; tuning range; mode switching ... See more keywords
Techniques for Improved Continuous and Discrete Tuning Range in Millimeter-Wave VCOs
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Transactions on Very Large Scale Integration (VLSI) Systems"
DOI: 10.1109/tvlsi.2018.2883355
Abstract: Millimeter-wave voltage-controlled oscillators (VCOs) require small tank inductors due to large parasitic capacitances contributed by MOS switches and cross-coupled pair. This significantly increases the effect of routing inductance on the uniformity of tuning range. In… read more here.
Keywords: discrete tuning; range; tuning range; techniques improved ... See more keywords