Fixed Attenuator Pad (Pi / T)

Device Topology & Electromagnetic Behavior

A symmetrical resistive network in Pi (Π) or Tee (T) configuration that drops RF amplitude by a calibrated value (3 dB, 6 dB, 10 dB, 20 dB) while maintaining exact 50 Ω port match in both directions. Acts as a vital isolation buffer between mismatched stages.

ANALYTICAL FORMULATIONS & S-MATRIX MAPPING

K = 10^Atten_dB / 20, R₁ = Z₀ ≤ft((K-1) / (K+1)), R₂ = Z₀ ≤ft((2K) / (K² - 1))

• Resistor synthesis equations for symmetrical Tee-pad attenuator.

Pi-Pad: R_P = Z₀ ≤ft((K+1) / (K-1)), R_S = (Z₀) / (2) ≤ft((K² - 1) / (K))

• Shunt and series resistance values for Pi-pad network.

Recommended Substrate Stackup

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Nikola RF Fabrication Directives

Low-inductance thermal via arrays under shunt resistors to chassis ground.
Tightly controlled thin-film tantalum nitride or nichrome resistor deposition.

Full-Lifecycle Engineering Services

Design, 3D EM Simulation & Handoff for Fixed Attenuator Pad (Pi / T)

We provide turnkey synthesis, multi-frequency full-wave simulation, and fabrication-ready packaging for the Fixed Attenuator Pad (Pi / T).

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.

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Initiate Design & 3D EM Simulation Scope for Fixed Attenuator Pad (Pi / T)

Submit your operational frequency, bandwidth, power handling, and target substrate stackup. Our electromagnetic engineers will deliver a verified feasibility audit within 48 hours.

06 • Secure Intake & Bilateral NDA

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.

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Operational Frequency Range

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Technical Requirements, Envelope Limits & Target Objectives

Bilateral NDA Requested: Dispatch mutual non-disclosure agreement prior to transmission of proprietary CAD models, Gerber layouts, or internal schematics.

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Computational Electromagnetics • Microwave Co-Design • Strict Engineering Confidentiality