Purushothaman Jayaraman

RF/Microwave Design Engineer and Tech Lead with 12+ years of experience in defence electronics, RF circuit design, and telecommunications. Expertise spans LNA, PA, filters, mixers, PLL design, antenna simulation, and link budget analysis across HF–Ku band. Currently leading drone detection and jamming system R&D at Big Bang Boom Solutions, Chennai.

Project Tech Lead – RF & Electronic Warfare - Big Bang Boom Solutions Pvt Ltd - Chennai

(2024-12)

• Spearheading end-to-end R&D of drone detection and RF jamming communication systems — covering system architecture, RF circuit design, hardware integration, and field validation testing.
• Architecting and implementing a cost-effective Digital Controlled Signal Sweep Generator (DCSSG) using Zynq FPGA in an SDR platform — delivering significant reduction in weight and component cost versus conventional designs.
• Conducting jamming link budget analysis, developing detector parameter accuracy algorithms, and leading the engineering team on technical queries and project milestone delivery.

RF Design Engineer - VDesign Technologies - Pondicherry

(2021-07 - 2024-03)

• Designed L/C-band transceivers and Ku-band up/downconverters from concept to prototype — circuit design, BOM, PCB layout, and test.
• Developed power amplifiers: L-band +30 dBm and C-band 4W output; capable of PA designs up to +50 dBm.
• Performed simulation, impedance matching, EMI minimisation; documented full design specifications and test reports.

RF Engineer - Veremex Technologies - Chennai

(2018-07 - 2021-07)

Samsung / Reliance Jio 4G

• Completed 73 4G LTE sites — RF testing, antenna tilt optimisation, RRU performance checks, and parameter analysis.

RF Engineer – Project Coordinator - Sigma Supply Chain Solutions

(2017-02 - 2018-01)

Samsung / Jio 4G

• Microwave link budget calculations, RRU/RDU integration, VSWR cable testing, and RF coverage area optimisation.

RF Engineer - Power Links - Chennai

(2015-02 - 2016-12)

Samsung / Jio 4G

• Drive tests across 156 sites using XCAL; supervised 7 drive-test teams and 4 subcontracted installation teams.

RF Engineer - Southern Telecom - Chennai

(2014-06 - 2015-01)

Huawei/ZTE — Vodafone, Airtel, BSNL 3G/MW

• Commissioned and tested network hardware at 37 sites; conducted ATP11A/11B quality acceptance tests.

B.E. - Electronics & Communication Engineering - Bharathidasan Engineering College (2013)