CS LH + RH Quad Antenna

The CS Quad antenna is a multipurpose airborne certifiable antenna which covers a wide range of airborne applications.

The CS antennas are engineered to harness the whole mobile network frequency spectrum for fast and reliable high-throughput connections. Four wide-band radiators with orthogonal MIMO polarization cover the entire cellular frequency spectrum.

A supplementary antenna element with circular polarization and upward radiation pattern is used for the GNNS / Iridium network. This antenna element complies with the guidelines for commercial usage of the Iridium satellite network.

The quad antenna design which incorporates 4ea. antenna poles, so one antenna replaces up to 4ea. legacy antennas on aircraft. The antennas are designed for helicopter and fixed wing aircraft rooftop mount to enable a interference-free cell network and/or WiFi operation.

It is the industry’s first wideband 4-pole antenna in a single lightweight blade design. As the system is designed in close cooperation with BKM-MICRONIC and team2technologies for rugged airborne applications, we are valued partners for full integration support and expert-based lifetime assistance.

The CS LH and CS RH antennas are future-proof, smart, secure, reliable, and longtime available investments.

The MLX100 system enables all types of airborne applications within a frequency range from 0.7 to 4.0 GHz. Typical applications are connectivity with mobile cell-network and WLAN- (MESH network) requirements or video-video-downlink applications. In addition, also public security applications in co-existence with IMSI-catchers are covered. Typical applications are connectivity, mission systems, public safety, emergency medical transport (HEMS/telemedicine), passenger connectivity and in-flight entertainment (IFEC).

In addition, aircraft tracking, asset management or automated aircraft data storage and transmission applications are enabled. Another use case is unattended wireless Inflight entertainment content on- transfer from and to airliner applications.

Available products
  • 2×3-1-Way Antenna Combiner
  • Frequency filters
  • Customizations and application adoptions available on request
Typical Specification

Radio frequency data:

0.694 to 3.800 GHz
E-UTRA (LTE) Bands
694-960MHz: 5, 6, 8, 12, 13, 14, 17, 18, 19, 20, 26-29, 44, 67, 68, 85, 103 1450-1500 MHz: 32 (Downlink) / 1710-2100 MHz: 1-4, 9, 10, 25, 33-36, 39, 66, 70 2500-2700 MHz: 7, 38, 41, 69 / 3400-3800 MHz: 22, 42, 43, 48, 49
5G-Band FR1 Bands
694-960MHz: n5, n8, n12, n14, n18, n20, n28, n29, n75, n76 1450-1500 MHz: n75, n76 (Downlink) / 1710-2100 MHz: n1-n3, n25, n34, n39, n65, n66 2500-2700 MHz: n7, n38, n41 / 3400-3800 MHz: n48, n78
Gain (peak/average)
2.2 to 6.4 dBi / -1,1 to -1,9 dB
Return loss
min. 7dB, typ. >10 dB
P1/P5: vertical; P2/P4: horizontal; Use P1/P4 and P2/P5 as MIMO pairs
Transmit power
2 W max. continuous per antenna port
5ea. TNC-f: cell (mobile network): P1/P2/P4/P5; GNSS or IRIDIUM: P3
Iridium antenna
1616 to 1626.5 MHz RX (center frequency 1,621 MHz ± 3MHz) Zenith gain: +2.0dBic typ @1,621 MHz; VSWR: max. 1.5:1; Axial rat: max. 3dB; Pol.: RHCP
GNSS antenna
1575MHz ±3MHz (center frequency: 1575MHz ± 3 MHz) Zenith gain: +1.5dBic typ.; VSWR: 2:1; Axial ratio: 3 dB max.; Polarization: RHCP

Physical data:

Dimensions / Weight
338 x 78 x 95 mm (LxWxH) without connectors* / 1.00kgs max
Up to 12ea. M4 screws, bottom mount*
CS LH + RH Quad Antenna


  • Frequency range: 0.7 to 3.8 GHz
  • Wide frequency design enables a wide range of airborne spplications
  • quad Antenna design eliminates 3ea
  • Admitted power: 2 W continuous (max)
  • Integrated GNSS Antenna (LH variant)
  • Integrated IRIDIUM Antenna (RH variant)
  • TNC female connectors
  • Impedance 500 hms
  • RTCA-DO-160 G certified
  • Rotorcraft an Fixed Wing platforms

Interested? Contact us...

Your contact person:

Christoph Eder

Managing director (CEO)

Christoph Eder