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Andrew Chen

Hi there! I'm Andrew Chen, the founder of sannytelecom.com. I've been operating a factory in China, designing and producing various kinds of communication antenna products since 2015. I'm passionate about wireless antennas and sustainability. In the articles, I want to share with you my knowledge about antennas & related products from a Chinese supplier's perspective.

2025 Ultimate Guide to RFID Antennas

Hey there! Let’s talk about something you probably use daily without even realizing it: RFID. Specifically, I want to dive deep into the unsung hero of any RFID system—the antenna. I’ve spent years working with this tech, and I’m here to give you the ultimate guide to RFID antennas, demystifying the jargon and helping you understand what makes them tick.

An RFID antenna is a critical device that converts a reader’s electrical signal into radio waves to activate and communicate with RFID tags. It’s responsible for both transmitting the energy that powers passive tags and receiving the data they send back, defining the system’s read range and coverage area.

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Andrew Chen 29 Jul 2025 No Comments

2025 Ultimate Guide to the Coaxial Cable Assembly

In the rapidly evolving landscape of wireless communication, the focus often falls on high-gain antennas, cutting-edge routers, or the latest surveillance cameras. Yet, tucked quietly between these devices and their antennas is a small but crucial component that can make or break your system’s performance: the coaxial cable assembly, commonly known as the pigtail. This humble assembly acts as the physical bridge, ensuring seamless and efficient transmission of high-frequency signals between antennas and various communication equipment—routers, wireless access points (APs), customer premises equipment (CPE),  RFID readers, and even CCTV systems.

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Andrew Chen 24 Jul 2025 No Comments

2025 Ultimate Guide to Antenna Connectors

The right antenna connector is crucial for a clear signal. The most common types include the screw-on F-type for TVs, the versatile BNC for radio and video, the compact SMA for Wi-Fi and GPS, and the robust N-type for high-performance and outdoor systems. For cellular DAS systems and base stations, the heavy-duty 7/16 DIN and the newer 4.3-10 connectors are widely used. Choosing the correct one ensures a secure, low-loss connection.

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Andrew Chen 11 Jul 2025 No Comments

How Beamforming and Phased Array Antennas Are Revolutionizing 5G Coverage

Beamforming and phased array antennas work together to focus 5G signals directly on your device, rather than broadcasting them in all directions. This targeted approach, made possible by using multiple antennas to create a steerable beam of radio waves, results in a stronger, more reliable connection with less interference. This technology is particularly crucial for the high-frequency millimeter-wave (mmWave) bands that give 5G its incredible speed but have a shorter range.

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Andrew Chen 10 Jul 2025 No Comments

The Evolution of Antenna Technology: From 1G to 5G-Advanced

The evolution of antenna technology is a direct response to the demands of each mobile generation. 1G used simple, external monopole antennas for analog voice on 800 MHz bands. 2G’s digital standards like GSM and CDMA prompted the move to compact, internal PIFA antennas to fit smaller phones. 3G’s UMTS standard introduced antenna diversity for better data reliability. 4G LTE required multiple antennas for MIMO technology to boost data speeds. 5G and 5G-Advanced now use sophisticated phased arrays and Massive MIMO for intelligent beamforming on Sub-6 GHz and high-frequency millimeter waves.

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Andrew Chen 4 Jul 2025 No Comments

Near-Field vs. Far-Field RFID Antennas

Near-field and far-field RFID antennas differ primarily in their communication method and read range. Near-field antennas use a magnetic, non-propagating field (inductive coupling) for short-range communication, typically up to 15-30 centimeters. Far-field antennas use a propagating electromagnetic wave (capacitive coupling or backscatter) for long-range communication, reaching up to 15 meters or more. The choice between them depends on the specific application’s need for range versus precision.

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Andrew Chen 1 Jul 2025 No Comments

The 2025 Ultimate Guide to WiFi 6/6E/7 Antennas

Selecting the right antenna for WiFi 6, 6E, or 7 in 2025 depends on your specific needs. For general home use with WiFi 6 or 6E, a dual-band or tri-band omni-directional antenna with at least 5 dBi of gain is a solid starting point. For the emerging WiFi 7 standard, you’ll want to look for tri-band antennas that are specifically designed to support the 6 GHz band and advanced features like Multi-Link Operation (MLO). If your goal is to cover a large, open area or establish a connection to a distant signal, a directional antenna, such as a sector antenna, will be your best bet. Always ensure that the frequency range of the antenna matches the capabilities of your router, whether it’s 2.4 GHz, 5 GHz, and/or 6 GHz.

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Andrew Chen 26 Jun 2025 No Comments

Satellite Dish Antenna vs Point-to-Point Dish Antenna

Today, let’s clear up the confusion by exploring the key differences between Satellite Dish Antennas and Point-to-Point Dish Antennas. We’ll dive into their unique characteristics, including their typical applications, operating frequencies, physical structures, interfaces, and mounting methods. By understanding these distinctions, you’ll be better equipped to select the ideal antenna solution for your next project or business requirement.

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Andrew Chen 12 Jun 2025 No Comments

WiFi 19dBi vs 23dBi Dual Polarization Panel Antenna

The primary difference between a 19dBi and a 23dBi dual polarization panel antenna is gain and beamwidth. A 23dBi antenna provides higher gain, giving it a stronger, more focused signal over longer distances, ideal for point-to-point links. In contrast, a 19dBi antenna provides slightly less gain but offers a wider coverage pattern, making it more suitable for shorter distance coverage.

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Andrew Chen 11 Jun 2025 No Comments

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