Structured Electronic Design EE 4109 Chris Verhoeven Anton

Structured Electronic Design EE 4109 Chris Verhoeven Anton Montagne 1

Staff and schedule Week Anton Montagne 2. 1 2. 2 Chris Verhoeven 2. 3 2. 4 Marion de Vlieger Secretary 2. 5 2. 6 2. 7 2. 9 Date 12 -11 -19 14 -11 -19 19 -11 -19 21 -11 -19 26 -11 -19 28 -11 -19 3 -12 -19 5 -12 -19 10 -12 -19 12 -12 -19 17 -12 -19 19 -12 -19 7 -1 -20 9 -1 -20 21 -1 -20 Day Tuesday Thursday Tuesday Thursday Tuesday Time 15: 45 -17: 30 13: 45 -15: 30 15: 45 -17: 30 13: 45 -15: 30 13: 30 -16: 30 Room D@ta Pi D@ta Pi Exam 2

Exam (way to pass this course) 1. Written exam, open book. Because of low number of students: Standard written becomes standard oral (via appointment) 2. Oral defense of the design based on the design report of the guided design example. During this defense, the student must bring a laptop with simulators and simulation files. The report must be handed in before the exam. During the lectures (and maybe a bit of homework) 2. Oral defense : grade 2+ Complete design: grade + 3 EC masterclass 3

SLi. CAP Symbolic Linear Circuit Analysis Program More than a symbolic network simulation tool: ‘Symbolic SPICE’ Helps setting up and solving design equations MATLAB® application Free of use (Creative Commons Attribution-Non-Commercial No-Derivatives 4. 0 International License) You need a laptop with MATLAB® installed. https: //www. analog-electronics. eu/slicap. html SLi. CAP will be used during the defense of the design, not in the standard (oral) exam 4

Book Now available from Delft Academic Press First Edition

Education levels: Bloom for engineers 4, 5, 6: Analyze, Evaluate, Synthesize 3: Apply Level 2: Understand TU-Delft Engineer 1: Remember Design methodology F 6 7 8 9 10

Traditional Bloom Cycle for Electronic Engineers 3: Apply Active education until level 4 Repeat existing designs Analyze results Tweak designs to meet specs Gradually develop a personal design methodology 2: Understand Student 1: Remember 4: Analyze 5 6 Design methodology “Experience” t?

Repeat Analyze Tweak “Experience”

No “tweaking” of accidentally available circuit Vacuum tube radio Transistor technology Vacuum tube architecture

Bloom Cycle for Innovators Active education including level 5 and 6 and operationalization 3: Apply 4: Analyze 2: Understand 5: Evaluate The full circle 4: Analyze 6: Synthesize Creative Structured and independent Design methodology thinking 1: Remember Operationalization Realization

Not in this course 6: Synthesize ology Inferior top cessary e n n a h t s e More issu Creative and independent thinking Operationalization

In this course There are specifications There is no circuit, so: No simulations to “optimize” No “tweaking” of existing hardware S p e c s 6: Synthesize Creative and independent thinking HOW? : Create a design yourself Operationalization

Structured Electronic Design by creating a design…

Building the “bridge” Top-down design Customer Hardware comes from the bottom Show-stoppers come from the bottom Biased transistor Bottom-up design e ar w -a om t t o “B n w do p to ” n ig s de Design Methodology Circuits technology Specifications come from the top

Our Customer: Low Frequency Radio Astronomers 15

“Hydrogen line” at 1420 MHz Expanding universe: Objects move away Red-shift: frequency goes down Looking deeper in space and deeper into the past means: Looking for largely redshifted hydrogen lines OLFAR and LUFAR: 30 k. Hz – 30 MHz 16

Sky at 4. 7 MHz RAE-2 all-sky map of the galaxy at 4. 70 MHz by J. C. Novaco & L. W. Brown (1978) [2] 17

A resonant antenna The length of the resonant antenna is ½ ( = wavelength) OLFAR and LUFAR: 30 k. Hz – 30 MHz OLFAR and LUFAR: 10 km – 10 m (RAE 1, 4. 7 MHz: 64 m) https: //en. wikipedia. org/wiki/Antenna_(radio) 18

? Short Antenna model 19

From antenna to radio Cable 20

Impedance matching c 299792458 cable reduction of c 0, 66667 c in cable 199861638, 7 cable length 6 delay cable 3, 00208 E-08 delay cable [ns] 30, 02076857 return delay [ns] 6, 00415 E-08 Lowest Resonant frequency at cable = 0. 5 Wavelength Lowest Resonant Frequency 16655136, 56 Lowest Resonant Frequency [MHz] 16, 65513656 m/s m s ns s Hz MHz 21

The LNA Active Antenna LNA 22