Device Topology & Electromagnetic Behavior
A 3-port diplexing network pairing a conical ultra-broadband RF inductor (choke) on the DC port with a series DC-blocking capacitor on the RF port. Allows DC power to travel up a single coaxial transmission line to power remote masthead low-noise amplifiers (LNAs) or active antennas while strictly blocking RF from entering the DC power supply.
Rogers RO4350B or RT/duroid® 5880 for high-frequency microstrip launches.
- Conical coil inductor geometry to damp self-resonant frequencies (SRF) across broadband.
- High-voltage rated low-ESR ceramic chip capacitor on the RF signal path.
Design, 3D EM Simulation & Handoff for Wideband Bias Tee (LC Diplexer)
We provide turnkey synthesis, multi-frequency full-wave simulation, and fabrication-ready packaging for the Wideband Bias Tee (LC Diplexer).
1. 3D Full-Wave FEM Modeling
Complete Ansys HFSS 3D CAD modeling with true edge-launch SMA or SMP connectors, via fence stitching, and adaptive mesh refinement down to ΔS < 0.007.
2. Sensitivity & Tolerance Sweeps
Monte Carlo statistical analysis over copper etching tolerances (±15 µm) and substrate permittivity variations to guarantee first-pass high-yield manufacturing.
3. Manufacturing Handoff
Delivery of verified simulation models, parameterized layout geometries, and photolithography-compliant Gerber RS-274X fabrication packages.
More in Impedance Matching & Utility

Quarter-Wave Matching Transformer
Quarter-wavelength transmission section for real and complex impedance transformation.

Planar Marchand Balun
Converts single-ended coaxial signals to differential balanced feeds with 180° phase split.

High-Frequency Series DC Block
Blocks dangerous DC bias voltages while providing transparent microwave transmission.
Initiate Design & 3D EM Simulation Scope for Wideband Bias Tee (LC Diplexer)
Submit your operational frequency, bandwidth, power handling, and target substrate stackup. Our electromagnetic engineers will deliver a verified feasibility audit within 48 hours.
Initiate Project Scope & NDA
We treat client intellectual property with military-grade rigor. Prior to receiving proprietary disclosure files, patent drafts, or trade secret geometries, we execute standard bilateral NDAs.
Bilateral NDA Standard
Mutual non-disclosure executed before file transmission.
Isolated On-Prem Compute
Simulations run on dedicated air-gapped workstations.
Clean Room Protocol
Full audit trail for IP litigation and patent defense.
