Device Topology & Electromagnetic Behavior
An in-line high-frequency capacitor structure embedded directly into a 50 Ω microstrip or grounded coplanar waveguide (GCPW) transmission line. Blocks direct current (DC) potentials from propagating between cascaded amplifier stages or test equipment, while presenting transparent (<0.1 dB) insertion loss to high-frequency RF signals.
Rogers RT/duroid® 5880 (εr = 2.20) for minimal pad parasitic capacitance.
- Tuned microstrip ground cutouts directly underneath capacitor solder pads to compensate for pad parasitic capacitance.
- Ultra-broadband multi-layer ceramic capacitor with single-layer porcelain dielectric.
Design, 3D EM Simulation & Handoff for High-Frequency Series DC Block
We provide turnkey synthesis, multi-frequency full-wave simulation, and fabrication-ready packaging for the High-Frequency Series DC Block.
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.

Wideband Bias Tee (LC Diplexer)
Injects DC supply voltage onto an active RF coaxial line without RF leakage.
Initiate Design & 3D EM Simulation Scope for High-Frequency Series DC Block
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.
