Seminars

Upcoming Seminars

Thu
May 04
General Seminar

Frequency synthesis and modulation by the DS fractional-N PLL are essential in modern wireless transceivers. In addition to loop parameter variability, leakage current, and matching problems, the DS fractional-N PLL needs to deal with quantization noise and nonlinearity in consideration of phase noise, spur, and settling time. In this talk, various fractional-N PLL architectures (analog/digital/hybrid) and recent circuit techniques for mitigating quantization and nonlinearity will be presented. Also, PLL-based modulation methods (1-point/2-point/2+-point) will be discussed. 

10:00 AM to 11:00 AM
POB 2.402
Thu
May 04

Spectrum efficient modulations with high peak-to-average-power ratios (PAPR) are widely employed in many high-performance wireless communication systems from low-GHz software-defined radios to 5G mm-Wave links. This growing trend has posed stringent requirements on next-generation power amplifier (PA) designs and transmitter architectures.

2:00 PM to 3:00 PM
POB 2.402
Fri
May 05

Delta-Sigma architectures are usually the best choice for high resolution analog-to-digital converters. But when the input is multiplexed from a number of inputs, they cannot be used directly. The memory in the modulator and the decimation filter results in inter-sample interference. To eliminate this, the conversion cycle has to be made long enough for the impulse response of the modulator and decimator to die out before applying the next sample. This results in a substantially lower sampling rate than when the Delta-Sigma ADC is used continuously.

2:00 PM to 3:00 PM
POB 2.402

April 2017

S M T W T F S
26
27
28
29
30
31
1
 
 
 
 
 
 
 
2
3
4
5
6
7
8
 
11:00 AM to 12:00 PM
General
Seminar
Fan Long
 
11:00 AM to 12:00 PM
General
Seminar
Jean Anne Incorvia
 
10:30 AM to 11:30 AM
General
Seminar
Dinesh Bharadia
 
12:00 PM to 1:00 PM
ECE Colloquia
Seminar
Nima Maghari
 
3:00 PM to 4:00 PM
IEEE Distinguished Lecture
Seminar
Nima Maghari
 
11:00 AM to 12:00 PM
General
Seminar
Eunsuk Kang
 
10:00 AM to 11:00 AM
Electromagnetics and Electroacoustics
Seminar
Kemal Aygun
 
 
9
10
11
12
13
14
15
 
11:00 AM to 12:00 PM
General
Seminar
Vikrant Gokhale
 
11:00 AM to 12:00 PM
General
Seminar
Martin Maas
 
10:00 AM to 11:00 PM
General
Seminar
Yabin Fan
 
12:00 PM to 1:00 PM
ECE Colloquia
Seminar
Jeffrey Bokor
 
 
 
 
16
17
18
19
20
21
22
 
 
 
12:00 PM to 1:00 PM
ECE Colloquia
Seminar
Brian Johnson
 
2:00 PM to 3:00 PM
General
Seminar
Sean Treichler
 
 
 
23
24
25
26
27
28
29
 
11:00 AM to 12:00 PM
General
Seminar
Nadia Polikarpova
 
 
 
 
 
 
30
1
2
3
4
5
6
 
 
 
 
 
 
 
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