hkk.fyi

Everything
is a wave.

Electromagnetic waves are what pull me in — the way they radiate, guide, and interfere. I chase them across the spectrum: microwave circuits and antennas on one side, photonics on the other. Same physics, different wavelengths.

EE undergraduate at the University of Tehran; my thesis aims those waves at non-invasive deep brain stimulation. The details live in the CV — the instruments run live in the Lab.

Hassan Keshtkar
HASSAN KESHTKAR · TEHRAN

01 Lab

Instruments I've built. They aren't screenshots — everything here runs live, in this page, offline-capable, no frameworks.

Smith Chart Studio

RF · canvas · teaching tool · 0 dependencies

A full interactive Smith chart with a built-in tutor. Drag the reflection point and watch Z, Γ, SWR and return loss stay in sync; rotate along a transmission line; flip impedance/admittance grids — then work through seven guided lessons, from “what is this chart” to L-network matching.

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NEXT INSTRUMENT

On the bench. This slot is reserved — the lab is never finished.

02 Curriculum Vitae

DOC. HK-CV · REV 2026.07 · SHEET 1 OF 1

Education
B.Sc. in Electrical Engineering — University of Tehran

Faculty of Electrical & Computer Engineering · Ranked #1 in Iran, QS World University Rankings 2026

Sep 2022 – Sep 2026 (exp.)

GPA 18.05 / 20 · ranked 13th of 128 — top 10% of cohort

Thesis: Improving Spatial Focality in Temporal Interference Deep Brain Stimulation via Phase Modulation — supervised by Prof. Hoda Ameri

SELECTED COURSES ▾
  • Filter & Circuit Synthesis 20
  • Engineering Mathematics 20
  • Linear Control Systems 20
  • Electronics II 20
  • Microwave I 19.8
  • Signals & Systems 19.74
  • Microwave Lab 19.54
  • Electric Circuits I 19
  • Communication Systems 18.8
  • Electronics I 18.5
  • Electromagnetics 18.26
  • Fields & Waves 18.1

In progress: Antenna I · Wireless Communications · Communication Circuits · EMC

Research experience
Bioelectromagnetics Laboratory — University of Tehran

Undergraduate research intern · Profs. R. Faraji-Dana, H. Ameri & A. Mataji-Kojouri

Jun 2025 – Nov 2025
  • Developed a non-invasive deep brain stimulation technique that targets deep neural circuits without surgical implants.
  • Proposed PM-TI, a phase-modulated temporal-interference method that reduces unintended stimulation spread by ≈70%, sharpening spatial focus.
  • Simulated electric-field distributions in biological phantoms with COMSOL Multiphysics to validate the focused hotspot.
  • Built a 2-channel high-precision current source (enhanced Howland architecture) to generate the stimulation signals in hardware.
  • Co-authored the PM-TI methodology paper, accepted at ICEE 2026.
Publications
  1. H. Keshtkar, M. Moltamesi, H. Ameri, A. Mataji-Kojouri, R. Faraji-Dana, “Spatial Focusing of Temporal Interference Deep Brain Stimulation via Phase Modulation,” 34th Int. Conference on Electrical Engineering (ICEE), 2026. accepted — pending IEEE indexing
  2. M. Moltamesi, H. Keshtkar, et al., “Seizure Suppression in a Neural Mass Model via Input–Output Feedback Linearization and Backstepping Control,” 34th Int. Conference on Electrical Engineering (ICEE), 2026. accepted — pending IEEE indexing
Honors & awards
  • Top 0.5% nationwide in Iran's university entrance exam (Konkur, Math & Physics) among 146,000+ participants — 2022.
  • Ranked 13th of 128 in the electrical engineering cohort.
  • Exam-exempt admission to the M.Sc. program at the University of Tehran, reserved for top-ranked undergraduates.
Teaching assistant
ElectromagneticsProf. Hoda AmeriUniversity of TehranFall 2025
ElectromagneticsProf. Asghar KeshtkarImam Khomeini Int. UniversityFall 2025
Electric Circuits IProf. Moein AbediniUniversity of TehranFall 2024
Skills
MATLABPythonCVerilog HDL COMSOL MultiphysicsAnsys HFSSAnsys MaxwellADSNI MultisimArduino
Languages
  • English — professional working proficiency
  • Persian — native

03 Contact

Three ports, all matched — your message won't reflect back.

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