Which Antenna Type Has the Highest Gain?

The parabolic dish antenna has the highest gain of any common antenna type, because its solid reflector gathers energy over a wide aperture and focuses it into the narrowest beam. In the BBT range, the 1.2 m BBT-5259PM34V12 dish reaches 34 dBi with a 3° beam.

The other high-gain antenna types follow in a clear order. The table below compares all eight on the gain, beamwidth, bands and size that BBT builds into each type, so every figure comes from a real product.

Gain ranges are taken from BBT product datasheets, November 2026. Beamwidth and size refer to the highest-gain model of each type.

Gain rises with two things: aperture size and frequency. A reflector that spans many wavelengths focuses energy tightly, and the same reflector spans more wavelengths as the frequency goes up. Three BBT models with 1.2 m reflectors show the effect: the BBT-0809PW18V12 grid delivers 18 dBi at 870–960 MHz, the BBT-2425PM28V12 dish 28 dBi at 2400–2500 MHz, and the BBT-5259PM34V12 dish 34 dBi at 5200–5900 MHz.

That is why sub-1 GHz projects usually turn to grid or Yagi antennas when they need gain. At 900 MHz, a 1.2 m reflector gives 18 dBi, and every extra dB needs a bigger reflector that catches more wind. An open grid lets that wind through, and a Yagi reaches 17 dBi at 902–928 MHz on a 1809 mm boom that mounts on a standard pole.

BBT High-Gain Antennas by Type

Four BBT models show what the top of each range looks like: the highest-gain solid dish, a dual-band 5G MIMO mesh dish for cellular links, a horn that spans 4.9–7.125 GHz for WISP towers, and a 17 dBi Yagi for the 902–928 MHz band.

34 dBi Parabolic Dish Antenna

BBT-5259PM34V12

5200–5900 MHz · 34 dBi
3° / 3° beam · vertical polarization
F/B ≥38 dB · VSWR ≤2 · 100 W
N-Female · Φ1200 mm · 60 m/s wind rating

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27 dBi 5G MIMO Mesh Parabolic Antenna

BBT-1742PW27D12-N2

1710–2690 / 3300–4200 MHz · 27±1 dBi
6° / 5° beam (±2°) · ±45° dual-pol
F/B ≥30 dB · isolation ≥25 dB · 100 W
2 × N-Female · Φ1200 mm iron mesh · 60 m/s

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20.5 dBi 4.9–7.125 GHz Horn Antenna

BBT-4971HO20R-N2

4900–5400 / 5400–6400 / 6400–7125 MHz
19 / 20 / 20.5 dBi (±0.5) · H-beam 20° / 17° / 15°
V/H dual-pol · F/B ≥25 dB · 100 W
2 × N-Female · Φ230 × 350 mm · 0.75 kg

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17 dBi 902–928 MHz Yagi Antenna

BBT-09YI17V17

902–928 MHz · 17 dBi
25° / 25° beam · vertical polarization
VSWR ≤1.5 · F/B ≥20 dB · 100 W
RP-SMA Male · 1809 × 172 × 68 mm · 60 m/s

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Need a different size, band or port count? See the 29 dBi grid antenna (BBT-5158PW29V06) for 5150–5850 MHz, the wideband grid antenna (BBT-0660PW1321VH09) for 600–6000 MHz, the 0.6 m 5G MIMO mesh parabolic antenna (BBT-1742PW2022D06-N2) at 20 / 22 dBi, the 26 dBi flat panel antenna (BBT-5158PA26V006), the 2.4 / 5 GHz MIMO sector antenna (BBT-2459PA1720D065-N4) at 17 / 20 dBi, the 2.4 / 5 GHz high-gain omni antenna (BBT-2458FG1215V) at 12 / 15 dBi and the wideband log-periodic antenna (BBT-0660LP1011V065) for 698–6000 MHz.

What Makes an Antenna “High Gain”?

A high-gain antenna concentrates its energy into a narrow beam aimed where the signal needs to go. The antenna adds no power of its own. It takes energy away from directions you do not need and puts it into the main beam.

Gain is quoted in dBi, measured against an ideal isotropic radiator that sends energy equally in every direction (0 dBi). A half-wave dipole measures 2.15 dBi. Every 3 dB of extra gain doubles the power in the main direction, and every 10 dB multiplies it by ten.

No industry-wide threshold defines “high gain”, so the answer depends on the antenna type. For an omnidirectional antenna, 10–15 dBi is already high. Directional types go much higher: the top models in the BBT range reach 17 dBi for a Yagi and 34 dBi for a dish.

The beam shows where the gain comes from. BBT's 12 / 15 dBi dual-band omni keeps 360° horizontal coverage and squeezes its vertical beam to 5° in the 15 dBi band. The 34 dBi dish narrows both planes to 3°. For the theory behind these numbers, see our guide to antenna gain vs directivity, and for the units on a datasheet, our explainer on dB, dBi and dBm.

High-Gain Antenna Types Explained

Each type builds gain in a different way, and that method sets its beam shape, size and best project fit. The eight types below run roughly from the highest gain to the widest coverage.

Parabolic Dish Antennas

A solid parabolic reflector bounces the energy from a feed at its focal point into a pencil-thin beam, and its large surface makes that beam the narrowest of any type. BBT dish antennas deliver 17–34 dBi across 2.4–5.95 GHz, with reflectors from Φ450 mm to Φ1200 mm and beamwidths from 20° down to 3°. Single-polarized and dual-polarized versions are both available, and the dual-polarized models (±45° or horizontal/vertical) carry two N-type ports for MIMO radios. A dish is the first choice for long point-to-point backhaul, where every dB of link margin counts. The cost is precise alignment and a solid surface that takes the full force of the wind. Browse our 2.4–6.4 GHz dish antennas, and see our guide to point-to-point antennas for link planning.

Grid and Mesh Parabolic Antennas

Grid and mesh antennas keep the parabolic shape but use an open reflector, so wind passes through it instead of loading the mount. BBT grid and mesh models deliver 10–29 dBi from 824 MHz to 5.85 GHz, plus a wideband grid that covers 600–6000 MHz at 13 / 21 / 20 / 19 dBi. The open design lets BBT build high-gain parabolic models for sub-1 GHz and 1.7–1.9 GHz cellular bands. The 5 GHz BBT-5158PW29V06 reaches 29 dBi from a 600×900 mm reflector, and for 5G and LTE links, the 1.2 m 5G MIMO mesh parabolic antenna delivers 27 dBi across 1710–2690 and 3300–4200 MHz with ±45° dual polarization and two N-type ports. Choose a grid for windy, exposed towers and for high-gain cellular links to a distant base station. Compare models in our 5G grid and mesh antennas range.

Flat Panel Antennas

A flat panel antenna builds gain from an array of radiating elements behind a flat radome, so it stays compact and mounts easily on a wall or short pole. BBT flat panels deliver 14–26 dBi across 2.4–5.85 GHz. The 26 dBi BBT-5158PA26V006 measures 450×450 mm with a 6° / 5° beam, while 14–18 dBi models with 30° to 18° beams come as small as 190×190 mm. Panels suit short building-to-building links, fixed wireless terminals and sites where a low profile matters. See panel antenna uses for typical deployments, or browse our flat panel antennas.

Horn Antennas

A horn antenna flares a waveguide into a wide mouth, which produces a symmetrical beam with low side lobes. BBT horn antennas deliver 15.5–20.5 dBi across 4.9–7.125 GHz, with beams from 40° down to 15° and weights of 0.45–0.75 kg. Low side lobes keep radios on a crowded tower from interfering with each other, so WISPs use horns for point-to-multipoint access where several access points share one mast. The 20.5 dBi BBT-4971HO20R-N2 covers 4900–7125 MHz in one unit with vertical and horizontal polarization. Browse our horn antennas, compare 20° vs 30° WISP horns, and see horn vs dish for longer links.

Sector Antennas

A sector antenna stacks radiating elements in a tall column, which narrows the vertical beam while keeping a wide horizontal one, so a few units side by side cover a full 360° site. BBT sector antennas reach up to 20 dBi, with most models at 14–17 dBi, and come in 65°, 90° and 120° horizontal beamwidths across 698 MHz–5.9 GHz. The vertical beam can be as tight as 5°, which carries signal far toward the horizon but needs correct downtilt to serve users near the tower. Base stations and WISP access sites use sectors to split coverage and capacity by zone. MIMO models such as the 2.4 / 5 GHz BBT-2459PA1720D065-N4 carry four N-type ports. Browse our sector antennas and MIMO sector antennas, or read our sector antenna guide.

Yagi Antennas

A Yagi antenna lines up a driven element, a reflector and a row of directors along a boom. More directors mean a longer boom, more gain and a narrower beam. BBT Yagi antennas deliver 8–17 dBi from 380 MHz to 2.17 GHz. Below 1 GHz, a Yagi reaches high gain in a far smaller package than a dish of similar gain: the 17 dBi BBT-09YI17V17 for 902–928 MHz is 1809 mm long and fits a standard φ30–60 mm pole. Yagis suit LoRa links, SCADA telemetry and remote sites aimed at one distant station. Each model covers a narrow band, so match it to your exact frequencies. Browse our VHF/UHF Yagi antennas and cellular Yagi antennas, and see Yagi vs omni for how the two share a network.

Log-Periodic Antennas

A log-periodic antenna uses a row of dipoles that grow longer along the boom, so a different group of elements does the work at each frequency. It trades some gain for bandwidth: BBT log-periodic antennas cover 617–6000 MHz at 9–11 dBi. The BBT-0660LP1011V065 serves 698–960, 1710–2700 and 3300–6000 MHz at 10 / 11 / 11 dBi from one 445×210×64 mm housing. Choose a log-periodic as a multiband donor antenna, or wherever one antenna must cover several operator bands at a site. Browse our log-periodic antennas and compare LPDA vs Yagi.

High-Gain Omnidirectional Antennas

A high-gain omni stacks radiating elements in a vertical array, which flattens its coverage into a thin disc around the horizon while keeping 360° horizontal coverage. BBT high-gain omni antennas deliver 10–15 dBi from 806 MHz to 5.85 GHz. More gain makes the disc thinner: the 15 dBi band of the BBT-2458FG1215V has a 5° vertical beam, so users close to the base of a tall mast can fall below it. Length grows as frequency falls, and BBT's 12 dBi omnis run from 0.8 m at 5.8 GHz to 2.8 m at 806–960 MHz. Use high-gain omnis at hub sites, LoRa gateways and WISP base stations that serve users all around. Browse our high-gain omni antennas and cellular omni antennas, and read omni vs directional before you decide.

Is Higher Gain Always Better?

Higher gain is better only in the directions your signal needs to reach. Every dB comes from narrowing the beam somewhere, and the choice between a high-gain and a low-gain antenna turns on these trade-offs:

• Alignment: a 3° dish beam leaves little margin for error. Tower sway, loose brackets and a twisting pole can pull the link off target, so use rigid mounts and align both ends carefully.
• Coverage close to the site: high-gain omni and sector antennas have narrow vertical beams, so areas near or below the antenna can see weak signal. Downtilt, or a lower-gain model, fills the gap.
• Size and wind load: a 1.2 m dish or a 1.8 m Yagi needs a strong mount. Check the rated wind velocity (60 m/s on most BBT models) and the pole diameter the bracket accepts.
• Bandwidth: a Yagi delivers high gain over a narrow band, while a log-periodic covers 617–6000 MHz at a lower 9–11 dBi.
• Power limits: many countries and regions cap EIRP, and in some unlicensed bands, fitting a higher-gain antenna means turning the radio's transmit power down. Local regulations set the limit.
• Obstructions: gain cannot push a signal through hills, buildings or dense trees. The link still needs line of sight and a clear path.

The same trade-off answers the familiar 3 dBi vs 5 dBi question. The 5 dBi antenna reaches further in its main direction and covers less above and below it, so the better choice depends on where your users or the far end of the link sit.

How to Choose a High-Gain Antenna Type for Your Project

Start with the project: link direction, distance, band and site conditions narrow the choice to one or two types, and the gain you need then picks the model.

Gain ranges are taken from BBT product datasheets, November 2026.

Once the type is set, compare datasheets on more than peak gain:

• Gain in every band: a multiband antenna is rarely equally strong across its range. BBT's wideband grid delivers 13 dBi at 600–960 MHz and 21 dBi at 1710–2700 MHz.
• Beamwidth in both planes: the horizontal beam sets how wide an area you cover, and a narrow beam in either plane tightens the alignment tolerance.
• Front-to-back ratio: a higher figure rejects more interference from behind the antenna, for example ≥38 dB on the 34 dBi dish.
• Polarization and ports: a dual-polarized antenna with two N-type ports feeds a 2×2 MIMO radio.
• Connector, wind rating and pole size: the connector should match your jumpers, the rated wind velocity should suit the site, and the bracket should fit your pole.

Why Project Buyers Source High-Gain Antennas from BBT ANTENNAS

BBT ANTENNAS builds all eight high-gain types in this guide, covering 380 MHz to 7.125 GHz, so one supplier can deliver the backhaul, access and coverage antennas for a project.

• Datasheets you can plan with: BBT product pages list gain band by band, beamwidth in both planes, connector type and, on outdoor models, rated wind velocity.
• Measured RF performance: gain and radiation patterns are measured in our microwave anechoic chamber, with network analyzers and third-order intermodulation testers on hand. Read how our anechoic chamber testing works.
• Built for outdoor sites: rain, salt-spray and drop test equipment checks durability, and most outdoor models carry a 60 m/s wind rating.
• Experience and quality systems: antenna work since 1991, more than 200 staff, ISO 9001:2015 and ISO 14001:2015 certification, a 30,000 m² R&D and production workshop, and four-stage quality control from raw materials to shipping.

We also offer OEM/ODM development when a project needs a custom band, gain, connector or private-label version.

High-Gain Antenna FAQ