Senior RF & Microwave Hardware Engineer : About Us : About the Role : The role includes RF signal-chain design from antenna port to baseband, including LNAs, PAs, mixers, filters, RF switches, attenuators, PLLs, frequency synthesizers, clock/LO distribution, and wideband RF front-end modules operating up to 40 GHz. The engineer will translate system-level requirements into circuit-level specifications and support the complete hardware development cycle from concept to qualification and production support.

Responsibilities : Circuit Design & Analysis :

- Design and optimize RF/microwave circuits and subsystems, including LNAs, PAs, mixers, filters, RF switches, attenuators, VCOs, PLLs, frequency synthesizers, clock/LO distribution circuits, and RF front-end modules up to 40 GHz.
- Perform RF system and circuit-level analysis, including link budget, cascaded gain/noise figure, IP2/IP3, P1dB, dynamic range, SFDR, phase noise, jitter, LO leakage, image rejection, harmonic/spurious analysis, EVM, and emissions performance.
- Develop and execute RF simulation models using tools such as Keysight ADS, AWR Microwave Office, Ansys HFSS, CST Studio, or equivalent tools for linear, nonlinear, EM, and system-level co-simulation.
- Select and qualify active/passive RF components and design with GaN/GaAs/SiGe/CMOS RFIC/MMIC devices.
- Define component derating, worst-case analysis, lifecycle risk, alternate part strategy, and reliability considerations for high-reliability aerospace and defence hardware.
- Translate system-level requirements such as frequency range, sensitivity, output power, EVM, phase noise, isolation, spur level, and dynamic range into verifiable RF circuit and subsystem specifications.

Systems Architecture & Integration :





- Contribute to RF subsystem architecture trade studies and module-level implementation planning.
- Work with system engineers to allocate RF performance budgets and cascade gain, noise figure, linearity, filtering, isolation, and dynamic range from antenna port to ADC/DAC interface.
- Define LO and clock architecture, including reference clock distribution, PLL/synthesizer selection, phase noise budgeting, spur management, synchronization, and frequency settling requirements.
- Guide and review RF PCB layout, including stack-up selection, controlled impedance routing, RF via transitions, grounding, return-current paths, shielding, cavity isolation, connector transitions, and mixed-signal partitioning.
- Support mechanical and thermal integration, including RF shielding, heat sinking, enclosure effects, RF cable/connector selection, vibration considerations, and high-power PA thermal design.
- Support integration with FPGA, firmware, embedded software, and DSP teams from the RF hardware side, including AGC, DPD, calibration, JESD204/LVDS interfaces, timing, synchronization, and hardware control interfaces.

Product Development & Qualification :

- Define and execute RF test plans covering conducted and radiated measurements, including S-parameters, gain, gain flatness, return loss, output power, P1dB, IP3, noise figure, phase noise, EVM, ACLR/ACPR, harmonic/spurious emissions, receiver sensitivity, blocking, isolation, and EMI/EMC pre-compliance.
- Perform prototype bring-up,



lab debugging, tuning, rework support, failure analysis, oscillation/debug, spur hunting, desense investigation, thermal drift analysis, and simulation-to-measurement correlation.
- Support design readiness and qualification activities for MIL-STD-461 EMC and MIL-STD-810 environmental requirements.
- Support production transfer, including DFM/DFT review, BOM alternate qualification, test fixture definition, production test procedures, and yield/debug support.
- Maintain design documentation, including schematics, RF PCB specifications, simulation reports, test procedures, test reports, analysis reports, interface control documents, compliance matrices, and verification evidence.
- Prepare and present PDR/CDR material, technical status, risk items, and design trade-off summaries to program managers, internal teams, and external customers.

Qualifications : Required :

- B.Tech / M.Tech. in Electrical and Electronics Engineering, or closely related field.
- 8+ years of hands-on RF/microwave circuit and subsystem design experience in an aerospace, defence setting.
- Demonstrated proficiency with at least two RF EDA tools: Keysight ADS, AWR Microwave Office, Ansys HFSS, CST Studio, or equivalent.
- Strong command of RF test equipment: VNA, Spectrum Analyzer, signal generator, noise-figure Analyzer, Oscilloscope and power meters.
- Experience designing with GaN/GaAs/SiGe/CMOS RFIC/MMIC devices.
- Familiarity with MIL-STD-461, MIL-STD-810, and MIL-HDBK-217 requirements.
- Strong written and verbal communication skills; ability to produce and defend technical documentation in a program environment.

Preferred :

- M.S. or Ph.D. in RF / Microwave Engineering or related discipline.
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📌 Rf Design Engineer (Hyderabad)
🏢 Sunshine Workforce Solutions
📍 Hyderabad