Antenna arrays
Arrays of Yagis, dipoles or LPDAs for higher gain and a narrower beam
Overview
Arrays of Yagis, dipoles or LPDAs for higher gain and a narrower beam; H-frame, mast, clamps, Wilkinson divider.
From the simplest to the most complex: two antennas stacked, up to 4 × 2 Yagis on an H-frame with Wilkinson dividers, phasing and a Chebyshev taper.
Typical performance
- VSWR < 1.5 over the element band, e.g. 430–440 MHztypical
- Gain increase: 1 × 2 ≈ +2.5…+3 dB, 4 × 2 ≈ +7…+8.5 dBtypical
- Polarisation: as the elementtypical
Typical values describe the antenna class, not a guarantee for a unit; “computed” marks our own simulated example.
View A
2 × 1 side by side
What we optimise
| Pos. | Parameter |
|---|---|
| P1 | Spacing |
| P2 | Taper: uniform, binomial, Chebyshev |
| P3 | Phasing and divider |
What you receive
| Pos. | Deliverable |
|---|---|
| D1 | Frame drawings |
| D2 | Divider board files |
| D3 | Cable lengths |
| D4 | A simulation model |
Designs
