L-Band 2W TDD RF Front-End Module with PA, LNA & High-Speed T/R Switch (1100–1500 MHz)
Table of Contents
Description
Compact and high-performance L-Band 2W TDD RF Front-End PA LNA T/R Switch 1100–1500MHz module for UAVs, mesh networks, COFDM systems, and SDR platforms. Delivers 2W output, low noise figure, and microsecond TX/RX switching.
Overview
The L-Band 2W TDD RF Front-End PA LNA T/R Switch 1100–1500MHz is a high-performance, compact RF module designed to optimize wireless communication in demanding applications. This integrated front-end module combines a power amplifier (PA), a low-noise amplifier (LNA), and a high-speed transmit/receive (T/R) switch into a single, robust enclosure.
Operating in the 1100–1500 MHz frequency range, the module is tailored for time-division duplex (TDD) systems, providing up to 2W (33 dBm) output power, excellent gain flatness, and ultra-fast TX/RX switching. It enhances signal quality, extends communication range, and ensures stable and reliable operation in harsh environments.
Designed for UAVs, mobile mesh networks, COFDM video links, and software-defined radio (SDR) platforms, the module’s lightweight and compact design allows seamless integration into airborne, ground, and vehicle-mounted systems. Its low-noise receiver path improves sensitivity and link robustness, making it ideal for mission-critical communications, tactical deployments, and commercial wireless networks.
The module is engineered to meet strict size, weight, and power (SWaP) requirements while maintaining high RF performance, making it an ideal solution for systems where both efficiency and reliability are crucial.
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Features
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Wide L-Band Coverage: Operates from 1100 MHz to 1500 MHz, compatible with most L-band radios and SDR platforms
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Integrated RF Design: Combines PA, LNA, and T/R switch in a single compact module
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High Output Power: Provides ≥2W (33 dBm) RF output, ideal for extending communication range
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Stable Gain Performance: TX gain of 40 ±1 dB with ≤1 dB flatness ensures consistent signal amplification
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Low Noise Figure: ≤2.5 dB noise figure enhances receiver sensitivity and reduces signal degradation
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Ultra-Fast Switching: TX/RX switching time ≤1 μs, optimized for TDD systems
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Excellent Isolation: ≥50 dB isolation between transmit and receive paths
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Lightweight and Compact: Dimensions 60 × 45 × 13 mm, suitable for UAV and portable deployments
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Digital Modulation Ready: Compatible with COFDM, QPSK, QAM, and other digital communication formats
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Flexible Control Interface: TX/RX switching voltage controllable between +1.8V and +5V
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Robust Environmental Performance: Operates in temperatures from -20°C to +70°C, suitable for harsh conditions
Specifications
RF Transmitter (TX) Specifications
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Frequency Range: 1100–1500 MHz
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RF Output Power: ≥2W (33 dBm typical)
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Gain: 40 ±1 dB
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Gain Flatness: ≤1 dB (peak-to-peak)
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Input Level: -7 ±1 dBm
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Adjacent Channel Leakage Ratio (ACLR): ≤ -35 dBc
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Switching Time: ≤1 μs
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Return Loss: ≥8 dB
RF Receiver (RX) Specifications
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Frequency Range: 1100–1500 MHz
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Gain: 8–10 dB
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Noise Figure: ≤2.5 dB
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OIP3: ≥10 dBm
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Gain Flatness: ≤1 dB
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Return Loss: ≥8 dB
T/R Switch Specifications
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Control Voltage: +1.8V to +5V (High = TX, Low = RX)
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Switching Speed: ≤1 μs
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Isolation: ≥50 dB
Power Requirements
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Supply Voltage: +12V DC standard (24V optional)
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TX Current: ≤1.5A
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RX Current: ≤0.1A
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Maximum Power Consumption: ≤20W depending on configuration
Interfaces
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RF Input: MCX-50KFD
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RF Output: MCX-50KFD
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Power Interface: Connector or solder pad
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Control Interface: Flying leads for TX/RX switching
Mechanical Specifications
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Dimensions: 60 × 45 × 13 mm (excluding connectors)
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Mounting: 4 × Φ3.2 mm through-holes
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Weight: Lightweight and compact design for UAV integration
Environmental Conditions
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Operating Temperature: -20°C to +70°C
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Storage Temperature: -40°C to +85°C
Applications
The L-Band 2W TDD RF Front-End PA LNA T/R Switch 1100–1500MHz module is ideal for:
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UAV Communication Systems: Provides long-range, reliable RF links for airborne platforms
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Mesh Networks: Enhances coverage and stability for distributed wireless networks
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COFDM Video Transmission: Supports high-quality video and data links for surveillance, broadcasting, and monitoring
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Software-Defined Radio (SDR): Acts as a high-performance front-end for SDR platforms
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Tactical and Public Safety Communication: Enables secure, high-reliability RF links for first responders
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Military and Defense Systems: Suitable for field deployment in harsh and demanding environments
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Mobile and Vehicle-Mounted RF Systems: Ensures reliable communication on moving platforms
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Emergency and Disaster-Response Communications: Maintains link robustness in critical scenarios
Customization Options
The module can be customized to meet diverse application needs:
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Frequency Range Adjustment: Tunable within or outside 1100–1500 MHz
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Gain Configuration: TX and RX gain can be optimized for specific systems
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Power Supply Options: Available in +12V or +24V DC configurations
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Connector Types: RF interfaces can be adapted (SMA, MMCX, or other formats)
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Control Interface Customization: Adjustable control voltage logic and connector options
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Mechanical Modifications: Housing dimensions and mounting options can be customized
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Thermal Management: Enhanced heat dissipation options for high-duty-cycle operation
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Environmental Ruggedization: Extended temperature ranges and sealing options for extreme conditions
FAQ
Q1: Is this module a complete radio system?
A: No. This is an RF front-end module and requires an external baseband system such as a mesh radio, COFDM modulator, or SDR platform.
Q2: Does it support full-duplex operation?
A: No. It is designed for half-duplex (TDD) systems with a high-speed T/R switch.
Q3: What devices are compatible with this module?
Any RF system operating within 1100–1500 MHz, including mesh radios, SDRs, and COFDM transceivers.
Q4: Can this module improve communication range?
Yes. Its 2W RF output power and low-noise receiver design extend link distance and improve signal reliability.
Q5: Is it suitable for UAV applications?
Yes. Its compact, lightweight design and microsecond TX/RX switching make it ideal for airborne applications.
Q6: Does it support modern digital modulation?
Yes. Compatible with QPSK, QAM, COFDM, and other digital modulation schemes.
Q7: Can it operate in harsh environmental conditions?
Yes. Operating temperature ranges from -20°C to +70°C, with optional extended ruggedization available.
Q8: Can it be customized for large-scale deployments?
Yes. Frequency tuning, gain adjustment, connector type, mechanical design, and thermal optimization are available for high-volume orders.
Q: What are the functions of each pin in the 6-pin interface? （replace 3 pin interface）
A: According to the provided information, the 6-pin interface is defined as follows (from left to right):
- Vcc: Power supply input (positive)
- TX_en (Enable Transmitter): Controls the transmitter; enables or disables the transmitting function
- GND: Ground (power negative)
- RX_en (Enable Receiving): Controls the receiver; enables or disables the receiving function
- GND: Ground (power negative)
- PDN (Power Down): Power-down control pin used to place the device into low-power or shutdown mode
Additional Notes:
- Having two GND pins helps improve power stability, reduce noise, and simplify PCB layout, especially in high-speed or RF designs.
- TX_en and RX_en are typically used to switch between transmit and receive modes, preventing conflicts.
- The PDN pin is useful for power-saving and standby control.
- Always verify the required Vcc voltage range, control signal logic levels (active high/low), and proper grounding based on the specific device datasheet.
This L-Band 2W TDD RF Front-End PA LNA T/R Switch 1100–1500MHz module delivers high efficiency, superior signal quality, and reliable performance for UAVs, mesh networks, SDR platforms, COFDM video links, and other critical communication systems. It is the perfect solution for applications requiring compact size, lightweight construction, and robust RF performance.
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