RF View Guide

RF View for 5G NR Component Analysis

Use RF View to analyze 5G NR sub-6 GHz components: n77/n78 bandpass filters, base station LNA matching, beamforming antenna array S-parameters, and wideband circuit simulation.

5G NR Sub-6 GHz RF Challenges

5G NR FR1 (sub-6 GHz) uses wider channels (up to 100 MHz) and higher-order modulation (256-QAM) than LTE, placing stricter demands on RF components. RF View analyzes all 5G NR frontend components from measured or manufacturer-provided S-parameter files.

Key 5G NR Bands and RF View Analysis

BandFrequencyMax Ch BWRF View Analysis
n773.3–4.2 GHz100 MHzBAW filter IL/GD, LNA S21/S11 at 3.75 GHz
n783.3–3.8 GHz100 MHzFilter BW/rejection, Smith chart matching
n794.4–5.0 GHz100 MHzMicrostrip matching at 4.7 GHz (RO4003C)
n412.496–2.69 GHz100 MHz2.5 GHz BAW filter, LNA analysis

5G n78 Filter Qualification Checklist

  Load n78 filter .s2p → verify against 3GPP specifications:
  Passband: 3300–3800 MHz
  IL (max): 2.0 dB (BAW) → measure: −1.4 dB ✓
  BW (-3dB): ≥500 MHz → measure: 528 MHz ✓
  Group delay ripple (max 5 ns for 256-QAM): measure: 3.8 ns ✓
  S11 (min 14 dB RL): measure: 16.2 dB ✓
  Rejection at 3000 MHz: ≥30 dB → measure: 38 dB ✓

  All pass → qualified for 5G NR n78 ✓

5G Base Station LNA Matching (n78, 3.5 GHz)

  Load base station LNA .s2p (e.g., 3.3–4.2 GHz MMIC LNA)
  S21 = +17 dB at 3.5 GHz
  S11 = −9 dB (noise-matched) → needs input matching for 50Ω system

  Auto Match at 3.5 GHz → synthesizes:
  Shunt C = 2.2 pF at 50Ω input, Series L = 1.0 nH at LNA input
  Matched S11 = −14.5 dB ✓

  Real Match → Murata 0201 size components (C0G, LQW series)
  for minimum size at n78 frequencies
RF View 5G Analysis: Load n78 BAW filter and LNA .s2p files, verify all 5G specifications, design matching networks, and compare multiple vendor components. Free on Android.

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