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PATCH ANTENNA 2.4 GHZ ANTENNA

TECHNICAL DATA SHEET

Document Number: TM-PATCH-ANTENN-001 Rev A Equipment: PATCH ANTENNA 2.4 GHZ ANTENNA Classification: UNCLASSIFIED — Amateur Radio / Field Use Date: 2026-05-24 Supersedes: None (initial issue)

RECORD OF CHANGES

Bands: 2.4 GHz ISM (2.4–2.5 GHz) Approach: Microstrip planar antenna: rectangular conducting patch on dielectric substrate, modern design Compaction: 0%

CHAPTER 1 — DESCRIPTION

Microstrip planar antenna: rectangular conducting patch on dielectric substrate, modern design

Special parameters: ~50mm × 65mm patch on FR4 substrate h=1.6mm, 50Ω coaxial feed, linear polarization, broadband variant possible

CHAPTER 2 — TECHNICAL CHARACTERISTICS

CHAPTER 3 — COMPONENTS AND MATERIALS

See detailed specification in patch_antenna_2.4_ghz_specs.csv

CHAPTER 4 — FABRICATION

1. Review design parameters and dimensions
2. Procure materials per component list
3. Fabricate elements per specifications
4. Install feedpoint connector
5. Assemble and secure structure
6. Verify physical dimensions match design
7. Test with antenna analyzer (nanoVNA)

CHAPTER 5 — TESTING

Use nanoVNA and tinySA per FIELD_TESTING_WITH_INSTRUMENTS.md:

1. Resonance: Find zero-reactance dip on Smith chart
2. SWR: Measure across band, target < 2.0:1
3. Impedance: Record R and jX at center frequency
4. Spectrum: Use tinySA to verify radiation pattern

CHAPTER 6 — TROUBLESHOOTING

High SWR: Check physical dimensions, verify feed connection Frequency offset: Adjust element length or loading Impedance mismatch: Use antenna tuner or feed network

APPENDIX A — PARTS LIST

See patch_antenna_2.4_ghz_specs.csv

APPENDIX B — DIAGRAMS

See figures/ folder for antenna layout, circuit schematic, construction detail

APPENDIX C — NEC MODEL

See patch_antenna_2.4_ghz.nec for electromagnetic simulation

Navy Technical Manual Level — Generated with NEC2 modeling

Figures