Technical Co-Founder — SpaceTech | Microwave WPT | RF, Antennas & Phased Arrays

Location: Bengaluru / India

Commitment: Full-time, all-in

Compensation: 25–30% founder equity | No salary initially

About Urja Dart

Urja Dart is building far-field microwave wireless power transfer (WPT) systems: transmitting energy through directed microwave beams and receiving it through high-efficiency antenna / rectenna systems.

We are developing a microwave-to-rectenna prototype toward a long-range terrestrial demonstration. Power-electronics capability is already in the team; we are seeking a co-founder to own the microwave, RF, antenna, phased-array, and end-to-end WPT link .

The current founder is a repeat SpaceTech entrepreneur who previously received a $2.5 million pre-seed funding commitment, bringing prior fundraising experience, investor access, and execution perspective to Urja Dart.

What You’ll Build

You will lead the complete microwave WPT journey:

Microwave source → RF power amplification → RF distribution / phase control → transmitting antenna or phased array → directed beam → free-space propagation → receiving antenna / rectenna → usable DC power

Key responsibilities

- Define WPT architecture, frequency, link budget, aperture sizing, beam width, power-density and end-to-end efficiency targets
- Develop microwave transmitter systems: RF sources, PLLs, PAs/SSPAs, RF power combining, filters, couplers, feed networks, thermal and protection systems
- Design transmitting antennas, high-gain arrays, phased arrays, beamforming and electronic beam-steering systems
- Lead beam pointing, phase calibration, polarization, sidelobe control,



radiation-pattern testing, and transmitter-array optimization
- Design receiving antenna and rectenna arrays: antenna elements, impedance matching, RF combining, harmonic control, receiver capture, array coupling, and misalignment tolerance
- Model propagation, beam spread, path loss, pointing error, multipath, safety, RF exposure, and spectrum/EMC constraints
- Take systems from CST/HFSS/ADS simulation to PCB/antenna fabrication, RF measurements, field testing, debugging, and iteration
- Work with our power-electronics teammate on the antenna-to-rectifier interface, rectification, DC combining, regulation, and delivered power

Who We’re Looking For Ideally, you have 5+ years in microwave/RF engineering, antenna systems, phased arrays, radar, Satcom, aerospace RF, electronic warfare, defense systems, telecom, or WPT. This is preferred—not mandatory for an exceptional hands-on builder.

You should have strong depth in several of these areas:

- Microwave transmitters, RF power amplifiers, high-power RF, RF front ends, microwave circuits, RF power combining
- Antennas, antenna arrays, patch/slot arrays, high-gain apertures, feed networks, polarization, and antenna measurements
- Phased arrays, beamforming, electronic steering, phase/amplitude control, calibration, beam shaping,



and sidelobe management
- RF propagation, EM simulation, link budgets, RF test and calibration, EMC/EMI, spectrum, or RF safety
- Rectennas, RF energy harvesting, RF-to-DC matching, microwave rectification, or WPT experience is a robust advantage—not a requirement

Experience with CST, HFSS, ADS, AWR, MATLAB/Python , and RF lab equipment such as VNA, spectrum analyzer, signal generator, power meter, directional couplers, and antenna-test setups is highly valuable. We welcome engineers and researchers returning to India from abroad, as well as professionals with ISRO, DRDO, defense-lab, aerospace, national-lab, Satcom, telecom-R&D;, or advanced RF-company backgrounds.

The Commitment

This is a genuine co-founder role—not a part-time experiment, advisory position, or conventional RF job.

- 25–30% equity , based on expertise, contribution, and commitment
- No salary at this stage, at least have 1 year of runway to survive.
- Full-time, all-in commitment required
- All employment, confidentiality, security, and IP obligations must be respected

Apply Apply here on LinkedIn or email your background/CV to [email protected] .

Please include a short summary of your relevant work, one or two projects or systems you are proud of, your full-time availability, and why microwave WPT interests you.

Subject: Technical Co-Founder Application — Microwave WPT / RF / Phased Arrays

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📌 Technical Co-Founder — SpaceTech | Microwave WPT | RF, Antennas & Phased Arrays (Bengaluru)
🏢 Urja Dart
📍 Bengaluru