Spotlight Antenna

The spotlight antenna, also known as a decorative spotlight-type or camouflaged floodlight base station antenna, is an outdoor directional external communication antenna. Its housing precisely replicates the design of outdoor lighting spotlights, integrating 4G/5G RF radiation units inside the lamp body to combine signal transmission and reception with urban landscape enhancement. It eliminates the need for additional signal towers and can be installed on rooftops, building facades, or platforms, fundamentally resolving common issues such as visual obtrusiveness and property restrictions on construction access associated with traditional antennas. This antenna from Qianmu Communications is a wideband dual-polarized directional base station antenna, serving as a core RF component specifically designed for indoor-outdoor collaborative deep coverage projects. Unlike simple imitations available in the market, our antenna features optimized electromagnetic isolation within its cavity structure, ensuring that the lamp housing does not obstruct RF radiation. It delivers both excellent camouflage aesthetics and high RF performance, making it suitable for communication infrastructure upgrade projects worldwide.

Working Principle

1. Basic Principles of Signal Transmission and Reception

The entire spotlight antenna consists of four core components: the RF radiation unit, metal reflective back panel, waterproof camouflage housing, and dual N-type connectors.

①Signal Transmission: The RRU device outputs radio frequency electrical signals, which are transmitted via two N-K connectors to the internal aluminum radiating elements within the antenna. These signals are converted into electromagnetic waves in the 698-3600 MHz range by resonant cavities and then radiated outward through a 65° horizontally directional beam, precisely covering the target building's floors.

②Signal Reception: Upstream electromagnetic waves emitted by mobile phones and IoT devices within the building are captured omnidirectionally by the antenna. The reflector collects and filters out interference signals, converting the electromagnetic waves into electrical signals that are transmitted back to the base station equipment, thereby completing bidirectional communication.

2. Camouflage shell with optimized core for signal non-attenuation

Most low-cost antennas use standard plastic housings, resulting in RF loss exceeding 15%, which leads to weak signals and sluggish network speeds at cell edges. Qianmu Communications' Factory has independently developed a modified UABS transparent wave housing, with laboratory measurements showing RF loss as low as only 6.2%. Combined with a layered aluminum radiation array, it avoids the shielding effect caused by metal brackets in conventional housings, achieving a 30% increase in downlink network speed under the same conditions. Raw measurement data from vector network analyzers is available upon request.

Technical Specifications

Mechanical structural parameters

Purchasing and Selection Guide

1. Prioritize confirming the frequency band coverage. For China's mainstream 5G 3.5GHz band, it is essential to select wideband spotlight antennas supporting 1710-3600MHz. Older antennas with a maximum of 2700MHz cannot support current 5G networks and will require full replacement later, significantly increasing project costs.

2. Verify actual RF parameters and reject misleading specifications. Before purchasing, require suppliers to provide measured vector network analyzer curves for the same model, focusing on verifying three key indicators: gain, VSWR, and front-to-back ratio. Low-cost products on the market often overstate gain, resulting in an actual coverage distance reduced by more than 40%.

3. Emphasis on outdoor protection and materials: In coastal areas with frequent rain and typhoons, die-cast aluminum vibrators combined with weather-resistant UABS enclosures must be used. Thin iron sheet vibrators and ordinary plastic enclosures will suffer corrosion and water ingress after 1-2 years, resulting in extremely high maintenance costs over time.

4. Select manufacturers with in-house R&D and production capabilities. Intermediaries lack research and development, quality control, and cannot provide customization, test reports, or after-sales technical support. Directly connecting with original manufacturers enables synchronized supply of auxiliary materials, customized parameters, fast after-sales service, and stable delivery for large-volume orders.

FAQ

Q1: Which communication frequency bands does this spotlight antenna fully cover? Does it support 5G?

A: The antenna operates across the frequency bands 698-960 MHz and 1710-3600 MHz, fully compatible with all bands of 2G GSM, 3G UMTS, and 4G LTE. It supports mainstream domestic 5G NR bands N41/N78 as well as major 5G bands in overseas countries. A single deployment enables collaborative 4G+5G coverage without the need for phased antenna replacement.

Q2: Does it support OEM/ODM customization? Which parameters can be modified?

A: As a factory at the source, we offer full-dimensional customization services: adjustable antenna gain, beam width, connector type (N/4.3-10), housing color, and body silk-screen logo. For special narrowband overseas projects, our R&D team can re-tune the RF oscillator.

Q3: Does the company support on-site factory audits? Can it provide qualification documents?

A: Shenzhen Qianmu Communication Technology Co., Ltd. offers factory tours to visitors by prior appointment one day in advance, allowing access to the manufacturing facility, production lines, and RF laboratory. Full ISO, CE, FCC, and RoHS certifications, along with third-party test reports, are available free of charge in electronic format; original printed copies with official seals can be provided for bidding purposes.