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LDX-225/248-2S Helical Diplexer Spiral Duplexer

Part No:LDX-225/248-2S

Frequency: 225-242MHz 248-270Mhz

Insertion Loss::≤2.5Rejection :≥≥50dB@248-270 MHz

Return loss :≥15dB Average Power:10W

Operating Temp:10~+40℃

Impedance(Ω):50

Connector Type:SMA(F)


Product Detail

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Leader-mw Introduction to spiral duplexer

Chengdu Leader Microwave Tech.,(leader-mw) latest innovation in RF technology - the spiral duplexer. Spiral duplexers are designed to meet the needs of modern communication systems, providing a compact solution with high Q and low insertion loss, making them ideal for a variety of applications.

In the evolving world of wireless communications, the need for efficient frequency management is critical. Spiral duplexers meet this need by providing narrow relative bandwidths, allowing precise frequency control and improved signal quality. This makes it an important component in applications such as cellular base stations, radar systems and satellite communications.

One of the main advantages of the spiral duplexer is its innovative spiral structure, which provides a perfect balance between size and performance. Unlike traditional LC structures, spiral duplexers can achieve high Q values ​​in excess of 1000 while maintaining a small form factor. This means it delivers great performance without compromising on space, making it ideal for compact portable devices.

Additionally, spiral duplexers are easy to produce, making them a cost-effective solution for manufacturers. Its waveguide or coaxial structure ensures an efficient manufacturing process, allowing seamless integration into a variety of systems and devices.

Leader-mw Specification
Specification:LDX-225/248-2S Helical Diplexer Spiral Duplexer

RX TX
Frequency Range 225-242MHz 248-270Mhz
Insertion Loss ≤2.5dB ≤2.5dB
Return loss ≥15 ≥15
Rejection ≥50dB@248-270 MHz ≥50dB@225-242 MHz
power 10W(C.W)
operating Temperature 10℃~+40℃
Storage Temperature -45℃~+75℃ Bis80% RH
impedance 50Ω
Surface Finish Black
Port Connectors SMA-Female
Configuration As Below(tolerance±0.5mm)

 

Remarks:

Power rating is for load vswr better than 1.20:1

Leader-mw Environmental Specifications
Operational Temperature -30ºC~+60ºC
Storage Temperature -50ºC~+85ºC
Vibration 25gRMS (15 degrees 2KHz) endurance, 1 hour per axis
Humidity 100% RH at 35ºc, 95%RH at 40ºc
Shock 20G for 11msec half sine wave,3 axis both directions
Leader-mw Mechanical Specifications
Housing Aluminum
Connector ternary alloy three-partalloy
Female Contact: gold plated beryllium bronze
Rohs compliant
Weight 0.5kg

 

 

Outline Drawing:

All Dimensions in mm

Outline Tolerances ± 0.5(0.02)

Mounting Holes Tolerances ±0.2(0.008)

All Connectors: SMA-Female

228
Leader-mw Test data
228-2
228-1

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