A balanced mixer is a circuit device that mixes two signals together to produce an output signal, which can improve the sensitivity, selectivity, stability, and consistency of receiver quality indicators. It is a key component used for signal processing in microwave systems. Below is an introduction from both features and applications perspectives:
Characteristics:
1. Ultra wideband coverage (17~50GHz)
This balanced mixer supports an ultra wide frequency range of 17GHz to 50GHz, which can meet the high-frequency application requirements of satellite communication, 5G millimeter wave, radar systems, etc., reducing the complexity of mid-range switching in system design.
2. Low conversion loss, high isolation
By adopting a balanced mixing structure, the leakage of local oscillator (LO) and radio frequency (RF) signals is effectively suppressed, providing excellent port isolation while maintaining low conversion loss, ensuring high fidelity signal transmission.
3. Durable packaging, suitable for harsh environments
The metal casing provides excellent electromagnetic shielding and heat dissipation performance, with a working temperature range of -55℃~+85℃, suitable for military, aerospace, and field communication equipment.
Applications:
1. Microwave testing and measurement: It serves as a core component in high-end test equipment like Vector Network Analyzers and Spectrum Analyzers. It is used for frequency extension measurements, component testing (e.g., amplifiers, antennas), and signal analysis, providing reliable millimeter-wave data for R&D and production.
2. Satellite communication: Widely used in K/Ka-band satellite ground stations, VSAT terminals, and low-earth orbit (LEO) internet systems (e.g., Starlink). It performs up-conversion for the uplink transmission and down-conversion for the downlink reception.
3. 5G and wireless backhaul: It undertakes the critical frequency conversion function in 5G millimeter-wave base stations (e.g., 28/39GHz) and E-Band point-to-point wireless backhaul systems, making it a key enabler for high-speed wireless data transmission.
4. Electronic warfare (ECM): Achieving high-sensitivity signal analysis in complex electromagnetic environments.
Qualwave Inc. provide coaxial and waveguide balanced mixers with a working frequency range of 1MHz to 110GHz, widely used in modern communication, electronic countermeasures, radar, and testing and measurement fields. This article introduces a coaxial balanced mixer with operating at 17~50GHz.
1. Electrical Characteristics
RF/LO Frequency: 17~50GHz
LO Input Power: +15dBm typ.
IF Frequency: DC~18GHz
Conversion Loss: 7dB typ.
Isolation (LO, RF): 40dB typ.
Isolation (LO, IF): 30dB typ.
Isolation (RF, IF): 30dB typ.
VSWR (IF): 2 typ.
VSWR (RF): 2.5 typ.
2. Absolute Maximum Ratings*1
Input Power: +22dBm
[1] Permanent damage may occur if any of these limits are exceeded.
3. Mechanical Properties
Size*2: 14*14*8mm
0.551*0.551*0.315in
IF Connectors: SMA Female
RF/LO Connectors: 2.4mm Female
Mounting: 4-Φ1.8mm through-hole
[2] Exclude connectors.
4. Outline Drawings


Unit: mm [in]
Tolerance: ±0.2mm [±0.008in]
5. Environmental
Operating Temperature: -55~+85℃
Non-operating temperature: -65~+150℃
6. How To Order
QBM-17000-50000
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Post time: Oct-10-2025