Ceramic Multiplexers
Ceramic multiplexers support more than the two frequency bands of a duplexer. Multiplexers with custom band combinations, including overlapping bands, can be designed and manufactured to meet your specifications. Ceramic multiplexers are compact, high-performance passive components designed to combine or separate multiple frequency bands within RF systems. Their precision-tuned design offers efficient channel isolation and minimal insertion loss, making them ideal for space-limited applications where performance and size are equally critical.
Ceramic Multiplexers by MCV
MCV ceramic multiplexers provide excellent electrical performance across various frequency bands in a lightweight, low-profile format. Designed for integration into dense RF environments such as mobile devices, wireless modules, and IoT systems, they are available in surface mount packages optimized for reliability and consistent performance in challenging operating conditions.
Ceramic Multiplexers
FAQ about Ceramic Multiplexers
What is a ceramic multiplexer?
A ceramic multiplexer is a compact RF component that uses ceramic resonators or dielectric materials to combine (multiplex) or separate (demultiplex) multiple frequency bands. They’re commonly used in wireless communication devices where space and performance are both critical.
How does a ceramic multiplexer work?
Ceramic multiplexers use dielectric resonators made from high-permittivity ceramic materials. These resonators filter specific frequencies by creating narrow bandpass or bandstop responses, allowing multiple channels to be routed through a single device with minimal interference.
What are the main advantages of ceramic multiplexers?
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Small size and lightweight
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High Q-factor for narrow bandwidth filtering
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Excellent temperature stability (with proper material choice)
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Low insertion loss and high channel isolation
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Suitable for mass production with consistent performance
What applications use ceramic multiplexers?
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Mobile phones (especially with multi-band operation)
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Wi-Fi and Bluetooth modules
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GNSS (GPS, Galileo, etc.) receivers
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IoT devices
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Base station components (small cell, repeaters)
What frequencies are ceramic multiplexers typically used for?
Ceramic multiplexers are commonly used from hundreds of MHz up to several GHz, typically in the 0.5–6 GHz range, depending on design. They’re ideal for cellular (LTE, 5G) and ISM band applications.
How do ceramic multiplexers compare to cavity or LC multiplexers?
| Feature | Ceramic Multiplexer | Cavity Multiplexer | LC Multiplexer |
|---|---|---|---|
| Size | Very small | Large | Small to medium |
| Frequency Range | 0.5–6 GHz | 1–40 GHz+ | Up to ~3 GHz |
| Q-factor | High | Very high | Moderate |
| Cost | Medium | High | Low |
| Integration | High (PCB/IC) | Low | Moderate |
Are ceramic multiplexers surface-mountable?
Yes, most ceramic multiplexers are designed as SMD (Surface Mount Devices), compatible with automated PCB assembly processes. They are often found in standard packages like 0805, 1206, or custom micro-packages.
What is the typical insertion loss of a ceramic multiplexer?
Insertion loss varies by design and frequency but typically ranges from 1 dB to 2.5 dB per channel. Lower insertion loss is critical for maximizing system efficiency and receiver sensitivity.
Are ceramic multiplexers temperature stable?
Yes. When made with temperature-compensated ceramic materials, they offer excellent thermal stability (±10 ppm/°C or better), making them reliable for use in environments with varying temperatures.
Can ceramic multiplexers be customized for specific applications?
Yes. We offer custom-tuned ceramic multiplexers for specific frequency bands, bandwidths, and performance targets. Customization may include package size, pin layout, and filter shape.
How can I order ceramic multiplexers from MCV Microwave?
To place an order for ceramic multiplexers please contact us and we will help you!