# RF Microtech: Custom antennas and RF Systems powering Space, SatCom, and Avionics

> RF Microtech Custom and ready\-to\-use antennas and filters powering Space, SatCom, and Avionics\.From Earth to orbit, advanced RF and microwave technology

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## Pages
- [Quality Policy](https://rfmicrotech.com/quality-policy/)
- [PMI Innovativa](https://rfmicrotech.com/pmi-innovativa/)
- [Newsletter subscription](https://rfmicrotech.com/newsletter-subscription-2/)
- [Contact Us](https://rfmicrotech.com/contact-us/)
- [Home](https://rfmicrotech.com/)

## Posts
- [Our ALL\-BANDS GNSS Antenna Is Now Qualified for Space\!](https://rfmicrotech.com/our-all-bands-gnss-antenna-is-now-qualified-for-space/)
- [LEO Celeste Mission: RF Filters Performing in Orbit](https://rfmicrotech.com/leo-celeste-mission-rf-filters-performing-in-orbit/)
- [ESA Industry Space Days 2026](https://rfmicrotech.com/esa-industry-space-days-2026/)
- [ASI National Workshop on SatCom User Terminals](https://rfmicrotech.com/asi-national-workshop-on-satcom-user-terminals/)
- [RF Microtech in orbit: custom RF filters onboard Celeste IOD\-2](https://rfmicrotech.com/custom-rf-filters-onboard-celeste-iod-2/)

## Active systems
- [L\-band Active Duplexer](https://rfmicrotech.com/sys-active/l-band-active-duplexer/): High channel selectivity and isolation; High gain stability over temperature; Low DC power consumption; MIL\-STD\-883 Qualified

## Antennas
- [S\-Band Helix Isoflux Antenna](https://rfmicrotech.com/antennas/s-band-helix-isoflux-antenna/): Hemispherical isoflux pattern; Circular polarization; SMA connectors; Test\-cap available
- [X\-Band High\-Gain Antenna](https://rfmicrotech.com/antennas/x-band-high-gain-antenna/): High\-gain; High efficiency \(\> 80%\); Space Qualified
- [Ka\-Band High Gain Antenna](https://rfmicrotech.com/antennas/ka-band-high-gain-antenna/): High\-gain; Circular polarization, factory selectable; Low mass and small size, cubesat compatible
- [Ka\-Band Dual band TX/RX TT\&C Antenna](https://rfmicrotech.com/antennas/ka-band-dual-band-tx-rx-ttc-antenna/): TX/RX in the same antenna with compact dimension \(\< 1U\); Hemispherical pattern; Circular polarization, factory selectable
- [Full\-Metal X\-Band High\-Gain Antenna](https://rfmicrotech.com/antennas/full-metal-x-band-high-gain-antenna/): Full\-Metal Design; High\-gain; Circular Polarization

## Filters \& Multiplexers
- [X\-Band Cavity Band\-pass Filter](https://rfmicrotech.com/filters-multiplexers/x-band-cavity-band-pass-filter/): The WAVEGUIDE X\-BPF is a compact band pass filter with high\-rejection and low\-loss that has been developed and qualified for space applications\.
- [SMD Ka\-Band Cavity Band\-pass Filter](https://rfmicrotech.com/filters-multiplexers/smd-ka-band-cavity-band-pass-filter/): High Compactness; Low loss; Low cost for volume production; SMD compatible
- [S\-Band Cavity Band\-pass Filter](https://rfmicrotech.com/filters-multiplexers/s-band-cavity-band-pass-filter/): Space qualified product; Low loss; High\-rejection; Power up to 15W in space environment
- [Ku\-Band Cavity Band\-pass Filter](https://rfmicrotech.com/filters-multiplexers/ku-band-cavity-band-pass-filter-4/): Low loss; High\-rejection; Compact design
- [Ku\-Band Cavity Band\-pass Filter](https://rfmicrotech.com/filters-multiplexers/ku-band-cavity-band-pass-filter-3/): Low loss; High\-rejection; Compact design

## Passive devices
- [S\-Band Hybrid Coupler](https://rfmicrotech.com/passive-devices/s-band-hybrid-coupler/): Low return and insertion loss; High directivity and coupling factor
- [L\-Band Directional Coupler](https://rfmicrotech.com/passive-devices/l-band-directional-coupler/)
- [UHF Directional  Coupler](https://rfmicrotech.com/passive-devices/uhf-directional-coupler/)
- [C\-Band 1:2 Power Divider](https://rfmicrotech.com/passive-devices/c-band-12-power-divider/): Low return insertion loss; High isolation; Excellent amplitude and phase balance

## Categories
- [News](https://rfmicrotech.com/cat/rf-microtech-information/)
- [Projects](https://rfmicrotech.com/cat/last-rf-microtech-works/)

## Optional
- [Sitemap index](https://rfmicrotech.com/sitemap_index.xml)