A dome radiates in every direction from a ceiling, so it suits one open floor with the antenna in the middle. A panel radiates in one direction from a wall, so it suits a long space, a run of rooms, or coverage aimed down through a floor.
Neither is better. They spend the same amplifier output in different shapes, and the right answer comes from the shape of the area you need to cover and from where the cable can physically reach. A dome in a hallway wastes most of its coverage in the walls. A panel pointed at the wrong wall does the same thing into your yard.
What Each One Actually Does
A dome antenna is omnidirectional. It is designed to mount in or on a ceiling and push signal outward and downward in a circle around itself. Put it in the geometric center of an open area and the coverage is even in every direction. Put it at one end of a long space and half of what you paid for goes into the exterior wall.
A panel antenna is directional. It mounts on a wall and radiates forward in a cone. Published beamwidths vary a great deal by model, so there is no single number to give you. One indoor wall-mount panel, the Top Signal TS260771, publishes 60 to 70 degrees horizontal and 55 to 45 degrees vertical across 698 to 2700 MHz on its retail specification page, read 2026-08-24. Wideband models are sold with considerably wider patterns. The only figure that describes your install is the one printed on your own antenna's spec sheet, so read it before you decide where the cone has to point.
The practical consequence of being directional is concentration. The same output aimed into a narrower cone reaches further in that direction and does a better job of getting through an interior wall or a floor than a dome does, because it is not spending energy in the other 300 degrees.
Choose by the Shape of the Space, Not the Size
This is the decision, and it is mostly geometry.
One open floor, roughly square, and you can get the antenna near the middle. A dome. This is what it exists for, and it is the common recommendation for open plan floors and offices with drop ceilings.
A long, narrow space: a hallway, a corridor of bedrooms, a mobile home, a shop. A panel at one end, aimed down the length. A dome in a corridor throws most of its pattern into the two side walls.
Coverage needed in a specific room at the far end of the house. A panel aimed at it. Directionality is exactly what you want when the target is not where the antenna is.
Coverage needed on the floor below. A panel mounted high and angled downward, or a dome in the ceiling of the lower floor if the cable can get there. Getting through a floor is harder than getting through a wall, and it is worth reading why cell signal is weaker on some floors than others before assuming one antenna will serve two levels.
A house with a wall you know is a problem, tile over a wet wall, plaster over metal lath, or foil-faced insulation. Aim a panel so that wall is not in the path at all. Our piece on whether stucco and metal siding block cell signal covers which materials cause this and why.
The Constraint Everybody Discovers Late
A dome assumes you can get above the ceiling.
Dome antennas are usually mounted in or through a ceiling, which means running the cable through the ceiling cavity, a drop ceiling, or the attic above. In a single story house with an accessible attic, that is a normal afternoon. In an apartment, on a lower floor of a two story house, or under a finished ceiling, it can be the hardest part of the entire installation.
A panel goes on a wall. The cable can come up the wall or along a baseboard and the mount is a couple of screws into a stud.
If the honest answer is that you cannot get into the ceiling, a wall mounted panel is not a compromise. It is the design that fits your building, and the coverage will be better than the dome you could not install properly.
The Feedback Angle Nobody Mentions
Here is the part of this comparison that the buying guides skip, and it is the one that decides whether the system runs at all.
Your indoor antenna is re-broadcasting the same frequencies your outdoor antenna is listening on. If enough of that indoor signal finds its way back to the outdoor antenna, the amplifier hears itself, and it will reduce its gain or shut down to stop it.
A panel gives you control over that. You can aim it away from the outdoor antenna, and use the building itself as isolation.
A dome does not. It radiates in every direction by design, including back toward whatever wall or ceiling the donor antenna sits above.
Neither is unsafe or wrong. It simply means the separation requirement in your manual matters more with a dome, and that a dome mounted directly beneath a roof mounted outdoor antenna is asking for trouble. The mechanics are in antenna separation distance for a signal booster, and what it looks like when you get it wrong is in the oscillation article, which is the mistake that got this site started.
Before You Swap One for the Other
Two limits are worth knowing before you order a replacement antenna.
The antenna is part of the certified system. The FCC's signal booster rules at 47 CFR 20.21 condition consumer booster operation on the subscriber operating the booster "only with approved antennas, cables, and/or coupling devices" as specified in the rule, along with obtaining the carrier's consent and registering the device. Read on the eCFR text at law.cornell.edu on 2026-08-24. In practice, the antenna you swap in should be one the booster's manufacturer lists as approved for that model.
Changing antenna type does not change the amount of signal available. A panel does not amplify more than a dome. It concentrates the same amplifier output into a narrower pattern. If the reading next to your current indoor antenna is weak, the problem is upstream and a different indoor antenna will not fix it. Our explanation of what a signal booster actually does covers where the ceiling on all of this comes from, and how much area a booster really covers covers why the box figure and your house rarely agree.
The Short Version
| If your space is | Use | Mount it |
|---|---|---|
| One open floor, antenna can go in the middle | Dome | Ceiling, central |
| A hallway or long narrow building | Panel | Wall at one end, aimed down the length |
| One far room that matters most | Panel | Aimed at that room |
| The floor below the cable run | Panel angled down, or a dome in the lower ceiling | High on a wall, or in the lower ceiling |
| A ceiling you cannot get into | Panel | Wall |
| Directly under the outdoor antenna | Panel aimed away | Wall, pointed away from the donor |
FAQ
Is a dome antenna better than a panel antenna?
Neither is better. A dome spreads the same output evenly in a circle, a panel concentrates it in one direction. The shape of the area you need covered decides which one wastes less.
Can I use a panel antenna on a ceiling?
Panels are designed for wall mounting and aimed radiation. Some installers mount them high and angle them downward to cover a floor below. Follow the mounting instructions for your specific model rather than improvising.
Does a panel antenna reach further than a dome?
In the direction it is aimed, generally yes, because it concentrates the same power into a narrower cone. Behind and beside it, it reaches much less far.
Can I swap my kit's antenna for a different type?
Only for one approved for that booster. Under 47 CFR 20.21, consumer booster operation is conditioned on using approved antennas, cables, and coupling devices, so check the manufacturer's list before buying.
Which one is less likely to cause feedback?
A panel, because you can aim it away from the outdoor antenna. A dome radiates back toward the donor as readily as anywhere else, so the separation distance in your manual matters more.
