Passive RF Frequency Multipliers
Description
Passive RF Frequency Multipliers are devices that produce an output signal with a frequency larger than the input signal by a predetermined factor. Unlike active multipliers, passive RF multipliers generate an output signal with a power level that is smaller than that of the input signal, characterized by a conversion loss.
Working Principle
Passive RF Frequency Multipliers operate by utilizing nonlinear components to generate harmonics of the input frequency. The desired harmonic is then filtered out to produce the output signal. These devices are particularly useful because they can increase the frequency of a signal without adding significant phase noise, which is crucial in maintaining signal integrity in applications such as radar and communication systems.
Applications
Passive RF Frequency Multipliers are used in various applications where maintaining low phase noise is critical. For example, they are employed in radar systems and communication systems to ensure minimal phase noise addition to the signal. Specific products like the CMD225, CMD226, and CMD227 cover output frequency ranges from 8 GHz to 30 GHz, making them suitable for high-frequency applications.
Advantages over other RF Frequency Multipliers
One of the primary advantages of passive RF Frequency Multipliers over active ones is their ability to add minimal additional phase noise to the signal. This makes them particularly advantageous in applications where signal clarity and integrity are paramount, such as in radar and communication systems.
Limitations
A significant limitation of passive RF Frequency Multipliers is the conversion loss, where the output power is less than the input power. This can be a drawback in applications where maintaining high power levels is necessary.
Considerations
When considering passive RF Frequency Multipliers, it is important to account for the initial costs and operating expenses, which may be lower compared to active multipliers due to the absence of amplification stages. However, the conversion loss might necessitate additional amplification elsewhere in the system, potentially increasing overall costs. Durability and maintenance are generally favorable, as passive components tend to have fewer failure points than active ones. Accuracy in frequency multiplication is high, but the reduced power output must be managed within the system design.
from Custom MMIC
The CMD227C3 is a broadband MMIC GaAs x2 passive frequency multiplier in a ceramic, QFN-style package. When driven by a +15 dBm signal, the multiplier provides 11 dB conversion loss at an output frequency of 23 GHz. The Fo and 3Fo isolations are 38 dBc and 49 dBc respectively. The CMD227C3 is a 50... [See More]
- Frequency Multiplier Type: Passive
- Multiplying Factor: 2X
- Input Frequency Range: 8000 to 15000
- Conversion Loss / Gain: 11
from Emhiser Research, Inc.
Reliability. All units are designed and constructed to meet or exceed specifications after exposure to any or all of the following MIL-STD-202 tests which are applicable. [See More]
- Frequency Multiplier Type: Passive
- Multiplying Factor: 2X
- Input Frequency Range: 0.0 to 5
- Conversion Loss / Gain: 12
from QuinStar Technology, Inc.
QuinStar Technology ’s QPM series of passive multipliers cover the output frequency range of 18-110 GHz. The design enhances either even or odd harmonics while suppressing unwanted odd or even harmonics. No external bias is required providing flexibility for system implementation. Standard... [See More]
- Frequency Multiplier Type: Passive
- Multiplying Factor: 2X (optional feature); 3X (optional feature)
- Input Frequency Range: 18000 to 110000
- Output: 8
from Pulsar Microwave Corporation
RoHS compliant, Custom frequency bands &optimized specifications available [See More]
- Frequency Multiplier Type: Passive
- Multiplying Factor: 2X
- Input Frequency Range: 0.2000 to 500
- Conversion Loss / Gain: 20
from Custom MMIC
The CMD256 die is a broadband MMIC GaAs x2 passive frequency multiplier. When driven by a +15 dBm signal, the multiplier provides 15 dB conversion loss at an output frequency of 34 GHz. The Fo isolation is 38 dBc. The CMD256 is a 50 ohm matched design eliminating the need for RF port matching. [See More]
- Frequency Multiplier Type: Passive
- Multiplying Factor: 2X
- Input Frequency Range: 14000 to 20000
- Conversion Loss / Gain: 15
from Emhiser Research, Inc.
Reliability. All units are designed and constructed to meet or exceed specifications after exposure to any or all of the following MIL-STD-202 tests which are applicable. [See More]
- Frequency Multiplier Type: Passive
- Multiplying Factor: 2X
- Input Frequency Range: 350 to 2000
- Conversion Loss / Gain: 13
from Custom MMIC
The CMD225 die is a broadband MMIC GaAs MMIC x2 passive frequency doubler / multiplier. When driven by a +15 dBm signal, this MMIC multiplier provides 12 dB conversion loss at an output frequency of 12 GHz. The Fo and 3Fo isolations are >48 dBc and >51 dBc respectively. The CMD225 multiplier... [See More]
- Frequency Multiplier Type: Passive
- Conversion Loss / Gain: 12
- Input Frequency Range: 4000 to 8000
- Input: 15
from Emhiser Research, Inc.
Reliability. All units are designed and constructed to meet or exceed specifications after exposure to any or all of the following MIL-STD-202 tests which are applicable. [See More]
- Frequency Multiplier Type: Passive
- Multiplying Factor: 2X
- Input Frequency Range: 10
- Conversion Loss / Gain: 12
from Custom MMIC
The CMD225C3 die is a broadband MMIC GaAs x2 passive frequency multiplier housed in a leadless surface mount (SMT) package. When driven by a +15 dBm signal, the multiplier provides 13 dB conversion loss at an output frequency of 12 GHz. The Fo and 3Fo isolations are >47 dBc and >54 dBc... [See More]
- Frequency Multiplier Type: Passive
- Conversion Loss / Gain: 13
- Input Frequency Range: 4000 to 8000
- Input: 15
from Custom MMIC
The CMD226 die is a broadband MMIC GaAs x2 passive frequency multiplier. When driven by a +15 dBm signal, the multiplier provides 10.5 dB conversion loss at an output frequency of 18 GHz. The Fo and 3Fo isolations are 44 dBc and 46 dBc respectively. The CMD226 multiplier MMIC is a 50 ohm matched... [See More]
- Frequency Multiplier Type: Passive
- Conversion Loss / Gain: 10.5
- Input Frequency Range: 7000 to 11000
- Input: 15
from Custom MMIC
The CMD226N3 is a broadband MMIC GaAs x2 passive frequency multiplier in a ceramic, QFN-style package. When driven by a +15 dBm signal, the multiplier provides 10.5 dB conversion loss at an output frequency of 18 GHz. The Fo and 3Fo isolations are 44 dBc and 46 dBc respectively. The CMD226N3 is a 50... [See More]
- Frequency Multiplier Type: Passive
- Conversion Loss / Gain: 10.5
- Input Frequency Range: 7000 to 11000
- Input: 15
from Custom MMIC
The CMD227 die is a broadband MMIC GaAs x2 passive frequency multiplier. When driven by a +15 dBm signal, the multiplier provides 11 dB conversion loss at an output frequency of 23 GHz. The Fo and 3Fo isolations are 40 dBc and 43 dBc respectively. The CMD227 multiplier MMIC is a 50 ohm matched... [See More]
- Frequency Multiplier Type: Passive
- Conversion Loss / Gain: 11
- Input Frequency Range: 8000 to 15000
- Input: 15