LC Multiplexers
Constructed with lumped inductors and capacitors, LC (lumped element) multiplexers are compact and cost-effective passive components designed to combine or separate multiple frequency channels within RF systems. Their frequency-selective design makes them well-suited for applications where space, performance, and budget must be carefully balanced.
LC Multiplexers by MCV
MCV LC multiplexers deliver solid electrical performance across both narrowband and broadband frequency plans. Their compact form factor and versatile design make them ideal for integration into wireless modules, IoT devices, communication systems, and test equipment. Available in rugged surface mount and connectorized packages, these multiplexers are built to perform reliably in space-constrained and environmentally challenging RF environments.
| wdt_ID | Part Number | Type | Number of Bands | Passband Frequency Ranges | I.L. in BW (dB)(max) | Ripple (dB)(max) | R.L. (dB)(min) | Attenuation at Reject Band (db)(min) | Isolation (dB)(min) | Power | Dimensions | Connector Type | Keep this part? | Data sheet exists? | Band Type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | MPL-000001A1 | Lumped Element | 4 | 46~53 53~68.5 68.5~88 88~94 |
3.00 | 1.00 | 14 | 50 | 2 | 33.02x25.4x6.91 | Convert | Y | |||
| 2 | MPL-000002A1 | Lumped Element | 4 | 75~89 89~106 106~126 126~150 |
3.00 | 1.00 | 14 | 50 | 2 | 33.02x25.4x6.91 | Convert | Y | |||
| 3 | MPL-000003A1 | Lumped Element | 4 | 100~130 130~140 140~172 172~180 |
3.00 | 1.00 | 14 | 50 | 2 | 33.02x25.4x6.91 | Convert | Y | |||
| 4 | MPL-000004A1 | Lumped Element | 4 | 150~178 178~212 212~252 252~300 |
3.00 | 1.00 | 14 | 50 | 2 | 33.02x25.4x6.91 | Convert | Y | |||
FAQ about LC Multiplexers
What is an LC multiplexer?
An LC multiplexer is a type of frequency-selective network that uses inductors (L) and capacitors (C) to combine or separate multiple RF or microwave frequency bands. It’s used in various communication systems where compactness and cost-efficiency are key.
How does an LC multiplexer work?
LC multiplexers work by using LC resonant circuits (filters) tuned to specific frequencies. Each channel path contains LC components that allow only a certain frequency band to pass while rejecting others. This enables signal multiplexing (combining) or demultiplexing (splitting).
What are the advantages of LC multiplexers?
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Compact size
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Lower cost than cavity or waveguide multiplexers
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Easier integration into PCBs and monolithic systems
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Customizable for low to mid-frequency bands
What are the limitations of LC multiplexers?
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Lower Q-factor compared to cavity or SAW filters
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Higher insertion loss
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Limited power handling
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Susceptibility to temperature drift
These factors make them less suitable for very high-frequency or high-power applications.
What are typical applications of LC multiplexers?
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Mobile and wireless communication devices
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IoT modules
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Consumer electronics (e.g., smartphones, tablets)
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Low- to mid-power RF front ends
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Test and measurement equipment
What frequency ranges are LC multiplexers suitable for?
LC multiplexers are generally suitable for low to mid RF ranges, typically from a few MHz up to a few GHz. At higher frequencies, parasitic effects become significant, reducing performance.
How are LC multiplexers designed?
They are designed using filter synthesis techniques, where each channel is configured with a bandpass LC network. Design software or network synthesis tools are used to optimize impedance matching, isolation, and insertion loss.
What is the difference between an LC multiplexer and a cavity multiplexer?
| Feature | LC Multiplexer | Cavity Multiplexer |
|---|---|---|
| Size | Smaller | Larger |
| Cost | Lower | Higher |
| Frequency | Low to mid GHz | Mid to high GHz |
| Loss | Higher | Lower |
| Power handling | Lower | Higher |
| Q-factor | Moderate | High |
How do temperature and component tolerance affect LC multiplexers?
LC multiplexers can be sensitive to temperature variation and component tolerance, which may shift the center frequency and degrade performance. Using temperature-stable components (like NP0/C0G capacitors) helps improve stability.
Can LC multiplexers be integrated into ICs or PCBs?
Yes. One of the key benefits of LC multiplexers is their suitability for integration into printed circuit boards (PCBs) or integrated circuits (ICs), making them ideal for miniaturized systems such as mobile devices.
How can I order LC multiplexers from MCV Microwave?
To place an order for LC multiplexers please contact us and we will help you!