Room-temp and cryogenic microwave components: mixers, attenuators, filters, switches, circulators, and RF interconnect.
20-port SMP sample box for high-performance 5–15-qubit QPU measurements with strong shielding and thermalization.
Quantum devices · Contact supplier
part_number: YQ-QP-20A · rf_ports: 20 (SMP) · chip_cutout: 10 × 10 mm
Compact 8-port SMP sample box with swappable PCB for few-qubit, high-coherence experiments.
Quantum devices · Contact supplier
part_number: YQ-QP-8A · rf_ports: 8 (SMP) · chip_cutout: 10 × 10 mm
SMA IR filter optimized DC–~1 GHz (<1.2 dB IL to 700 MHz) for stronger IR blocking on coax lines.
Microwave & RF · Contact supplier
passband_focus: DC-1 GHz · insertion_loss_dc_700mhz: <1.2 dB · return_loss: >10 dB (DC-10 GHz)
High-frequency cryogenic coax wiring with K/2.92 mm connectors up to 40 GHz and RF thermalization sets.
Microwave & RF · Contact supplier
max_frequency: 40 GHz · connector: K / 2.92 mm · impedance: 50 Ohm
SMA IR filter optimized DC–8 GHz (<1.3 dB IL) to block high-energy photons on cryogenic coax lines.
Microwave & RF · Contact supplier
passband: DC-8 GHz · insertion_loss: <1.3 dB · return_loss: >20 dB (DC-15 GHz)
Factory-installed SMA (to 18 GHz) semi-rigid cryogenic coax with stage attenuators and RF installation sets.
Microwave & RF · Contact supplier
max_frequency_sma: 18 GHz · impedance: 50 Ohm · attenuator_values: 0,1,3,6,10,20,30 dB
OFHC cold finger with mu-metal/Al shields hosting 1×20-port or 2×8-port sample boxes.
Cryogenics · Contact supplier
part_numbers: YQ-CF-20A / YQ-CF-20B · rf_ports: 20 (SMP) · hosts: 1×20-port or 2×8-port sample boxes
25-line cryogenic MFT box with Micro-D connectors; optional 2-pole RCRC kHz cutoff stage.
Microwave & RF · Contact supplier
channels: 25 · connectors: Micro-D · dimensions: 30 x 56 x 68 mm
NbTi superconducting flex bias lines with integrated LPF, IR filter, and attenuator for qubit/coupler tuning.
Microwave & RF · Contact supplier
platform: NbTi Cri/oFlex · bias_band: up to 1 GHz · integrated: LPF + IR filter + attenuator
Pre-assembled cryogenic loaders/probes and cabling kits from 8–256 channels per port with HD SMP options.
Microwave & RF · Contact supplier
channels_per_port: 8-256 · connectors: HD SMP, SMP, SMA, HD SMPM · feedthrough_leak_rate: <1.2e-9 mbar·L/s
High-density flex microwave drive/feed/pump lines with distributed attenuation for 6–8 GHz qubit control.
Microwave & RF · Contact supplier
typical_band: 6-8 GHz · channels_per_flex: 8 · flex_thickness: 0.3 mm
Ag or NbTi multi-channel flex signal lines without integrated components for general cryogenic RF I/O.
Microwave & RF · Contact supplier
materials: Ag or NbTi on polyimide · nbti_loss: 1.5 dB/m @ 6 GHz · contact_resistance: <10 mOhm
12-channel cryogenic BiasT array, 10 kHz–1 GHz / 50 Ω, for scalable flux-biasing with low thermal load.
Microwave & RF · Contact supplier
part_number: YQ-CBT12-1G · channels: 12 · rf_frequency: 10 kHz – 1 GHz
Custom cryogenic RF cable assemblies (SS, CuNi, BeCu, NbTi) with cryogenic connectors and adapters.
Microwave & RF · Custom
materials: SS, CuNi, BeCu, NbTi · application: quantum / cryogenics RF I/O
Superconducting NbTi/NbTi semi-rigid coax (BCB002) for cryogenic RF; ~61 GHz operating frequency.
Microwave & RF · Custom
outer_dia: 0.085 in · impedance: 50 Ohm · operating_frequency: 61 GHz
Custom cryogenic DC/RF probe cards (>100 DC, tens of RF) designed and validated for low-temperature probing.
Sensing & readout · Custom
dc_probes: > 100 · rf_probes: tens · customization: Number, arrangement, and properties match bonding pad layout
Ultra-compact 12-channel LP + IR filter array, DC–1300 MHz / 50 Ω, for flux-line filtering.
Microwave & RF · Contact supplier
part_number: YQ-HD12LPF-1G · channels: 12 · rf_frequency: DC – 1300 MHz
Cryogenic infrared filter for microwave signals, DC–10 GHz / 50 Ω, SMA, Eccosorb CR 110.
Microwave & RF · Contact supplier
part_number: YQ-IR-110A · rf_frequency: DC – 10 GHz · impedance: 50 Ω
Broadband cryogenic dual-junction isolator/circulator, 4–12 GHz, ~0.4 dB IL / 30 dB isolation typ.
Microwave & RF · In catalog
frequency: 4-12 GHz · insertion_loss_typ: 0.4 dB · isolation_typ: 30 dB
Ultra-low-loss cryogenic isolator/circulator (LNF-ISC4_8A / LNF-CIC4_8A) with SMA-F, ~0.17 dB IL.
Microwave & RF · In catalog
frequency: 4-8 GHz · insertion_loss_typ: 0.17 dB · isolation_typ: 22 dB
Cryogenic triple-junction isolator/circulator with ~60 dB typical isolation over 4–8 GHz, SMA-F.
Microwave & RF · In catalog
frequency: 4-8 GHz · insertion_loss_typ: 0.4 dB · isolation_typ: 60 dB
Non-magnetic nickel-free SMA/SMP/SMPM cryogenic-compatible coax jumpers for quantum cryostat interconnect.
Microwave & RF · Contact supplier
connectors: SMA, SMP, SMPM, SMPS, SSMB (Ni-free) · center_conductor: Ag-plated Cu · cable_dias: .047, .086, .141 in
24-line cryogenic RC+RF low-pass filter banks for mK electron temperatures on DC/RF control lines.
Microwave & RF · Contact supplier
channels: 24 (standard RC+RF) · rc_cutoff: ~65 kHz · rf_cutoff: ~225 MHz
Thermalized non-magnetic 6 dB cryogenic attenuator to 40 GHz with 2.92 mm connectors and 50 Ω termination.
Microwave & RF · In catalog
frequency: DC-40 GHz · attenuation: 6 dB · connector: 2.92 mm non-magnetic
Non-magnetic SMA m/f cryogenic attenuator, DC–26 GHz; NiCr on crystalline quartz; 0–30 dB options.
Microwave & RF · In catalog
frequency: DC-26 GHz · attenuation_options: 0,3,6,10,20,30 dB · connector: SMA m/f
Build-to-order cryogenic RF assemblies: select cable material/length and connectors (incl. non-magnetic).
Microwave & RF · Custom
materials: NbTi and other cryogenic coax options · nbti_min_length: ~2 in · testing_standard: continuity + high-R short
mK-rated ferrite isolator (QCI-G0400801xx); ~0.15 dB IL / 24 dB isolation typ; multi-junction options.
Microwave & RF · Custom
model_family: QCI-G0400801xx · frequency: 4-8 GHz · insertion_loss_typ: 0.15 dB
Broadband mK circulator (QCY-G0401201xx); ~0.2 dB IL / 20 dB isolation typ across 4–12 GHz.
Microwave & RF · Custom
model_family: QCY-G0401201xx · frequency: 4-12 GHz · insertion_loss_typ: 0.2 dB
mK-rated ferrite circulator (QCY-G0400801xx); ~0.15 dB IL / 24 dB isolation typ; shielding options.
Microwave & RF · Custom
model_family: QCY-G0400801xx · frequency: 4-8 GHz · insertion_loss_typ: 0.15 dB
Cryogenic SMA attenuators for dilution stages: up to 18 GHz, up to 2 W, operating ~0.01–400 K.
Microwave & RF · Contact supplier
frequency: up to 18 GHz · power: up to 2 W · attenuation: up to 20 dB
Multi-channel (e.g. 16-way) IR absorber filters for cryogenic quantum RF lines near 10 mK.
Microwave & RF · Contact supplier
channels_example: 16-way · function: IR absorption / crosstalk reduction · target_temp: ~10 mK
32-channel cryogenic attenuator module (D1M267TE family) for dense quantum RF thermalization.
Microwave & RF · Contact supplier
channels: 32 · part_ref: D1M267TE · application: cryogenic RF thermalization
Room-temperature flux BiasT, 10 kHz–2 GHz / 50 Ω, for high-fidelity flux-tunable superconducting qubit control.
Microwave & RF · Contact supplier
part_number: YQ-BT-2G · rf_frequency: 10 kHz – 2 GHz · impedance: 50 Ω
Single-line cryogenic microwave filter/thermalizer with >100 dB attenuation above 130 MHz for mK experiments.
Microwave & RF · Contact supplier
attenuation: >100 dB above 130 MHz · impedance_capacitance_options: ~100 Ω & 2.5 nF @ 4K or ~25 mΩ & 2.5 nF @ 4K · resistance_to_ground: > 1 TΩ
Ultra-compact 25-line MFT box (~⅓ volume of compact MFT25) for 10 mK mounting; optional RCRC/π stage.
Microwave & RF · Contact supplier
channels: 25 · connectors: Micro-D · dimensions: 12 x 49 x 68 mm (12 x 49 x 88 mm with RCRC or π stage)
Ultra-compact 8-line MFT package for small cryostat inserts; stackable up to 48 lines in a 50 mm insert.
Microwave & RF · Contact supplier
channels_per_package: 8 · max_stacked: 6 packages (48 lines) in 50 mm insert · dimensions: 51 x 21 x 3.2 mm
SMA male–female cryogenic fixed attenuator, DC–18 GHz, 2 W; selectable 0–30 dB values.
Microwave & RF · In catalog
frequency: DC-18 GHz · power: 2 W · attenuation_options: 0-30 dB
1.85 mm male–female cryogenic attenuator, DC–65 GHz, 1 W; rated to ~20 mK.
Microwave & RF · In catalog
frequency: DC-65 GHz · power: 1 W · temp_min: 20 mK
Ultra-low-noise DAC, preamps, I/V converters, and cryogenic microwave filter/thermalizer units for quantum and mK experiments.
Control electronics · Microwave & RF · Cryogenics · Sensing & readout · Basel, CH
WebsiteCryogenic measurement infrastructure including coaxial wiring, IR filters, and multi-channel RF installation sets.
Cryogenics · Microwave & RF · Helsinki, FI
WebsiteCryogenic and superconducting RF coax cable assemblies, connectors, and attenuators for quantum labs.
Microwave & RF · Cryogenics · Witham, GB
WebsiteCri/oFlex® high-density superconducting flex I/O with integrated attenuators and filters for cryogenic quantum systems.
Microwave & RF · Cryogenics · Delft, NL
WebsiteParent of CryoCoax; RF interconnect manufacturer supplying cryogenic cable, connectors, and subsystem builds.
Microwave & RF · Cryogenics · Witham, GB
WebsiteCryogenic HEMT LNAs plus ultra-low-loss isolators and circulators for mK microwave readout chains.
Microwave & RF · Sensing & readout · Gothenburg, SE
WebsiteBroad RF catalog with non-magnetic cryogenic-compatible cables, attenuators, filters, and interconnects for quantum.
Microwave & RF · Brooklyn, US
WebsiteCustom cryogenic RF cable assemblies in NbTi, phosphor-bronze, stainless, and related materials for quantum labs.
Microwave & RF · Cryogenics · Bozeman, US
WebsiteQFilter multi-stage cryogenic low-pass filters for millikelvin electron temperatures on DC/RF signal lines.
Microwave & RF · Cryogenics · IL
WebsiteNon-magnetic cryogenic attenuators and microwave components for quantum and low-temperature experiments.
Microwave & RF · Hingham, US
WebsitemmWave and cryogenic ferrite circulators/isolators with magnetic shielding options down to mK.
Microwave & RF · Torrance, US
WebsiteCRYONIUM™ cryogenic microwave interconnects: attenuators, IR filters, cables, and multi-channel modules to ~10 mK.
Microwave & RF · Cryogenics · FR
WebsiteFixed coaxial attenuators rated for cryogenic use down to ~20 mK, including SMA and 1.85 mm lines.
Microwave & RF · Manchester, US
WebsiteCryogenic microwave components, flux BiasTs, IR/LP filters, and QPU sample-box packaging for superconducting qubit systems.
Microwave & RF · Quantum devices · Cryogenics · Villigen, CH
Website