RF and wireless designs require precisely matched components—connectors, cables, amplifiers, filters, and antennas—where datasheet parameters directly impact link budget and regulatory compliance. Restar Electronics supports RF engineers with 500,000+ in-stock SKUs, 24-hour RFQ response, BOM matching, quality inspection, and global shipping for sub-6 GHz and mmWave programs.
Complete RF Component Supply Chain
From bench-top test setups to embedded module production, RF systems depend on low-VSWR connectors, calibrated cable assemblies, LNAs, filters, and PCB/FPC antennas with verified S-parameter performance. Restar maintains deep RF inventory across connector, passive, and active categories with engineer-led selection support.
5G, Wi-Fi 6/7, and IoT sub-GHz applications each impose distinct matching, filtering, and ESD protection requirements on the RF front end. Our FAE team assists with link budget calculations support parts, filter selection, and cross-reference matching for multi-band wireless designs.
- SMA/SMB connectors, RF cables, LNAs, filters, and antennas in stock
- 24-hour RFQ with BOM matching for RF module and test equipment builds
- FAE support for matching networks, filter selection, and connector choice
- Global shipping for prototype validation and production RF assemblies
Key Challenges
Link Budget & Noise Figure Optimization
Every dB of insertion loss or NF degradation directly impacts range and data rate—component selection must be performance-driven, not just cost-driven.
Multi-Band Antenna Integration
Devices covering LTE, Wi-Fi, and GNSS bands require carefully designed matching networks and isolation between co-located radiators.
Regulatory & EMC Compliance
FCC, CE, and SRRC certifications depend on filter performance, harmonic suppression, and ESD robustness at RF ports.
Application Scenarios
Lab & Production Test Setups
RF test benches, network analyzers, and production calibration stations require precision cable assemblies, attenuators, and calibrated connectors for repeatable measurements. Restar supplies SMA/SMB/N-type assemblies, RF passives, and adapter kits.
- SMA/SMB precision cable assemblies
- Fixed and variable RF attenuators
- Calibration-grade RF adapters and loads
Embedded Sub-6 GHz RF Modules
LTE, LoRa, and Wi-Fi modules integrate transceiver ICs with external LNAs, filters, and PCB antennas on compact multilayer boards. We provide LNA ICs, SAW/BAW filters, and matching network MLCCs and inductors.
- Low-noise amplifier ICs (sub-6 GHz)
- SAW, BAW, and ceramic filters
- RF inductors and high-Q MLCCs
Antenna Integration & Matching
FPC, chip, and PCB trace antennas require pi-network matching with precision passives tuned to specific board layouts and enclosure materials. Restar delivers FPC antennas, chip antennas, and matching component kits.
- FPC and flexible PCB antennas
- Ceramic chip antennas (2.4/5 GHz)
- Matching network inductors and capacitors
Key Components
SMA / SMB / N-Type RF Connectors
Module I/O, test ports, and antenna feeds
In Stock / RFQ
RF Cable Assemblies
Bench test, inter-module, and antenna pigtails
In Stock / RFQ
Low-Noise Amplifiers (LNAs)
Receiver front-end gain and NF optimization
In Stock / RFQ
SAW / BAW / Ceramic Filters
Band selection and harmonic suppression
In Stock / RFQ
FPC & Chip Antennas
Embedded wireless device radiator integration
In Stock / RFQ
RF ESD / TVS Protection
Antenna port and RF I/O surge protection
In Stock / RFQ
Our Capabilities
RF BOM & Link Budget Support
Engineering assistance selecting connectors, LNAs, and filters based on target link budget and band plan.
Antenna Matching Network Design Support
Passive component recommendations for pi-network matching with available high-Q MLCCs and inductors.
Cross-Reference for RF Passives
Form-fit-function alternates for discontinued filters, connectors, and cable assemblies.
Prototype & Production RF Supply
Single-unit cable assemblies to reel-quantity passives from one distributor partner.
Engagement Process
Share RF Requirements
Submit frequency band, link budget, connector type, and BOM.
RF Engineering Review
Restar validates LNA, filter, and antenna specs against your design.
Quote & Sample Delivery
Receive 24-hour pricing and approve cable assemblies or module passives.
Production Fulfillment
Global delivery with lot traceability for RF production builds.