Device Topology & Electromagnetic Behavior
A planar microstrip structure consisting of four quarter-wave transmission lines in a rectangular loop. Series arms have an impedance of Z₀/√2 (35.35 Ω) and shunt branches have an impedance of Z₀ (50 Ω). Critical for IQ modulators, balanced amplifiers, and circular-polarization antenna feeds.
Rogers RT/duroid® 5880 (εr = 2.20) or 6002 (low TCDk phase stability).
- Compensate for T-junction discontinuity capacitances with mitered chamfers.
- Equal line-length phase matching on output feeder launches.
Design, 3D EM Simulation & Handoff for Branch-Line Coupler (90° Hybrid)
We provide turnkey synthesis, multi-frequency full-wave simulation, and fabrication-ready packaging for the Branch-Line Coupler (90° Hybrid).
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 Power Division & Combining
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Rat-Race Coupler (180° Hybrid Ring)
Ring hybrid coupler producing sum (Σ) and difference (Δ) phase distributions.
Initiate Design & 3D EM Simulation Scope for Branch-Line Coupler (90° Hybrid)
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.