Ceiling Mount Antenna

Ceiling Mount Antenna are indoor ceiling-mounted omnidirectional radio frequency antennas. Qianmu Communication's self-developed ceiling-mounted antenna features an integrated circular ceiling design, with precision pure copper oscillators and highly isolated reflector backplates inside, and is a passive wideband communication antenna. The product can be directly embedded in the ceiling to achieve 360° uniform signal radiation, taking into account both installation aesthetics and full coverage capability, and is widely compatible with indoor WiFi, Bluetooth, 4G signal amplification and whole-house networking systems. The Qianmu communication ceiling-mounted antenna, with a pure copper oscillator + flame-retardant ABS housing process, is perfectly compatible with various commercial indoor networking projects such as hotels, office buildings, shopping malls, factories, etc.

Working principle

The thousand-mesh communication ceiling-mounted antenna achieves stable signal transmission and reception through the dual mechanism of coaxial feed oscillator radiation and bottom reflection aggregation. The internal structure is divided into four layers: feed connector, radiation oscillator, isolation reflector, and protective housing. Every performance parameter is measured in the anechoic chamber, no false parameters are marked:

1. Wideband oscillator resonance principle: Using annular omnidirectional copper oscillators, covering the dual WiFi standard frequency bands of 2400-2500 MHZ and 5150-5850 MHZ, the measured frequency band standing wave is overall ≤1.4, there is no resonance blind zone in the full frequency band, and there will be no situation where the 5G frequency band cannot be found in some areas.

2. Bottom reflection wave concentration: A metal reflection backplate is added to the bottom of the antenna to counteract the signal loss caused by the ceiling metal keel and ceiling aluminum panel upward. The measured vertical downward signal attenuation is reduced by 70%, 90% of the wireless energy radiates into the indoor space, and the coverage distance is increased by 30% at the same power.

3. 360° uniform radiation mechanism: Symmetrical layout of circular oscillators, horizontal radiation fluctuation ≤1.2dB, no coverage imbalance problem of strong signal on one side and no network on the other side, measured signal strength difference within a 10-meter radius no more than 5dBm.

4. Isolation anti-interference structure design: An additional absorbing cotton layer is added inside the housing to isolate electromagnetic noise generated by switches and wires in the computer room above the ceiling. In dense AP networking scenarios, co-frequency interference is reduced by 40%, and the network speed of multiple users connected simultaneously does not drop significantly.

5. Wide temperature stability material structure: Flame-retardant ABS housing + all-copper oscillator, tested for 72 hours of high and low temperature aging from -30 °C to +65 °C, oscillator no oxidation, frequency deviation error ≤±3MHz, performance does not decline in long-term high temperature environment of closed ceiling.

Compatible with supporting equipment

This ceiling-mounted antenna is compatible with the vast majority of indoor wireless communication devices on the market. Engineering modifications do not require additional adapter accessories and can be directly connected for use:

1. Commercial wireless devices: Enterprise dual-band wireless AP, high-power WiFi router, hotel AC wireless controller, ceiling-mounted wireless router

2. Signal enhancement equipment: 2.4G/5G signal amplifier, 4G/5G indoor micro base station, mobile phone signal repeater, Bluetooth amplification gateway

3. Iot networking equipment: Bluetooth gateway, LoRa indoor collection base station, industrial 2.4G sensor gateway, campus iot central control host

4. Weak current engineering accessories: radio frequency power divider, coupler, indoor feeder, weak current box network expansion module

Complete installation and usage guide

(1) Key points for pre-installation planning

1. Location planning: In open rooms, each ceiling-mounted antenna has an effective coverage radius of 8-12 meters. In hotel rooms with many partitions, one antenna is placed every 6-8 meters.

2. Ceiling avoidance: Install to avoid metal pipes, strong electrical cables, and switchgear inside the ceiling to reduce electromagnetic interference;

3. Wiring requirements: Use 50Ω standard RF feeders, with each feeder length controlled within 15 meters to avoid excessive signal loss.

(2) Step-by-step process for ceiling installation

1. Drilling: Make a 30mm diameter circular hole in the gypsum board/aluminum ceiling through the radio frequency feeder;

2. Wiring: Connect one end of the feeder to the SMA interface on the back of the ceiling-mounted antenna and tighten it to prevent loosening;

3. Fixing: Push the main body of the antenna from below the ceiling into the hole, with the back snap on top of the ceiling panel, automatically locking and fixing;

4. Rear-end docking: Connect the other end of the feeder to the wireless AP, signal amplifier RF port, and power on the device;

5. Actual measurement and acceptance: Use a signal tester to test the signal strength of the coverage area. The range of -40 to -70 DBM is considered qualified coverage.

(3) Post-maintenance notes

1. Check every six months for loose antenna clips and oxidized feeder joints;

2. In damp basements and kitchen Settings, remove and clean the casing for dust removal every year to avoid dust accumulation affecting radiation efficiency;

3. Do not stack metal sheets or wires above the antenna, which will significantly reduce the wireless coverage range.

FAQ Frequently Asked Questions

Q1: What devices is this ceiling-mounted antenna compatible with?

A1: The Qianmu communication ceiling-mounted antenna is compatible with the vast majority of 50Ω RF interface devices such as dual-band wireless aps, high-power WiFi signal amplifiers, 4G indoor micro base stations, etc. It can be directly matched for commercial wireless coverage projects in hotels and office buildings.

Q2: Do you need professional tools for installing Ceiling Mount Antenna? Can a single person do the work?

A2: No complex tools are required. Only a small electric drill is needed to make holes, and the snap-fit structure is fixed. One person can complete the installation of one ceiling-mounted antenna in 5 minutes. The product comes with an installation manual, and even construction workers with no prior experience can understand the operation steps.

Q3: Can the antenna interface, shell LOGO and packaging be customized?

A3: Fully customizable. As the source Factory, we can replace all types of RF interfaces of SMA/N/BNC as needed, support silk-screen printing of customer brand LOGO on the shell, custom neutral export packaging, color box packaging, and the minimum order quantity for OEM/ODM custom orders can be negotiated.

Q4: How can we confirm the actual coverage distance of the ceiling-mounted antenna? Can we provide the measured data?

A4: Yes. Each batch of ceiling antennas comes with a radio frequency anechoic chamber test report, along with on-site coverage test video and signal strength data for various domestic hotels and office buildings. All parameters are real and verifiable, and customers can send samples back for self-testing and comparison.