The ELX1215-NH-SMA Embedded L1/L2 GNSS helix antenna is a compact solution for precision positioning, navigation and timing applications.
It is a dielectrically loaded helical antenna for L1 and L2 bands. It has an intrinsic band-pass filter response, tightly tuned to L1 and L2 frequency bands which provides protection from out of band interference. This antenna offers high multi-frequency gain for its size and footprint. The ELX1215-NH-SMA supports multi-constellations including GPS L1/L2, BeiDou B1, Galileo E1, GLONASS G1 and SBAS.
Key Features:
High gain across both bands
High accurate, focused phased centre
RHCP with excellent co-to-cross polarisation ratio
Immunity to detuning in near field
SMA connector mount
Weighs just 31g
As the use of UAVs and drones proliferate across military and industrial applications, a key component in their design is the use of GNSS antennas. The obvious choice is between a GNSS patch style antenna and a GNSS helix antenna. Here are some of the main reasons for choosing a GNSS helix antenna for UAVs and drones.
Compact and Lightweight
Given the environment, the more compact and lightweight the GNSS antenna is the better. Typically, GNSS helix antennas can weigh in the region of 30g to 40g which is ideal for weight critical applications. For example, the ELX1512 antenna weighs 37g including its integral SMA-Male connector. The embedded version weighs just 31g.
Small Footprint
UAV and done designs do not need a square GNSS patch antenna taking up a lot of “real estate” on their platform. By definition, patch antennas are flat and square which is often impractical. GNSS helix antennas in contrast have a small footprint, often based on a SMA connector which can be augmented by further mounting holes on some models. This small footprint makes installation on UAVs and drones a lot more attractive.
Support for multi-constellations
GNSS Helix antennas are very suitable for wideband operation without compromised their compact form factor. GPS L1/L2 or L1/L5 bands are easily covered with excellent RF performance.
Highly accurate
Higher quality GNSS helix antennas have highly focused and consistent phased centres meaning that their inherent stability allows for incredibly precise positioning across multiple frequency bands.
Groundplane independent
As GNSS Helix antennas are often groundplane independent, they work well on non-metal surfaces such as the typically composite structure of a drone or UAV. This characteristic is also beneficial for portable and mobile devices where the enclosure may be polycarbonate or similar and no groundplane is available.
High Gain
GNSS helix antennas can offer high gain across the multi-constellation bands. Incorporating effective and efficient Low Noise Amplifiers (LNAs), GNSS helix antennas can offer predictable and consistent performance.
For more information on GNSS helix antennas, please contact us or check out a GNSS antenna offering.
The ELX1115-SMA GNSS helix L1/L5 antenna is a compact solution for precision positioning, navigation and timing applications.
It is a dielectrically loaded helical antenna for L1 and L5 bands. It has an intrinsic band-pass filter response, tightly tuned to L1 and L5 frequency bands which provides protection from out of band interference. This antenna is robust and durable with high multi-frequency gain for its size and footprint. The ELX1115-SMA supports multi-constellations including GPS L1/L5, BeiDou B1, Galileo E1, GLONASS G1 and SBAS.
Key Features:
High gain across both bands
High accurate, focused phased centre
RHCP with excellent co-to-cross polarisation ratio
Immunity to detuning in near field
SMA connector mount – O-ring in base for ingress protection
The ELX1215-SMA L1/L2 GNSS helix antenna is a compact solution for precision positioning, navigation and timing applications.
It is a dielectrically loaded helical antenna for L1 and L2 bands. It has an intrinsic band-pass filter response, tightly tuned to L1 and L2 frequency bands which provides protection from out of band interference. This antenna is robust and durable with high multi-frequency gain for its size and footprint. The ELX1215-SMA supports multi-constellations including GPS L1/L2, BeiDou B1, Galileo E1, GLONASS G1 and SBAS.
Key Features:
High gain across both bands
High accurate, focused phased centre
RHCP with excellent co-to-cross polarisation ratio
Immunity to detuning in near field
SMA connector mount – O-ring in base for ingress protection
The HX-CH7018A Embedded Helix antenna from Harxon is designed for high precision positioning and offers superior satellite signal tracking, including GPS, GLONASS, GALILEO, and Beidou as well as L-Band correction service. Its RTK level positioning accuracy makes it ideal to be integrated into application as surveying and mapping, and various UAVs operations.
The HX-CH7018A features multi-point feeding technology that ensures high phase center stability. Meanwhile, adopting advanced patented D-QHA technology and covering a wider frequency band, the HX-CH7018A achieves extraordinary 2.8dBi gain for reliable and consistent performance.
It also optimizes circuit layout and features a robust pre-filtered LNA that features excellent out-of-band interference rejection performance and minimizes possible unwanted electromagnetic interference.
The HX-CH7018A Embedded Helix antenna weighs only 8 with compact dimensions of D44*H28mm, making it ideal to be integrated into UAV applications.
Check out the HX-CH7069A for a compact helix in a radome.
The HX-CHX602A GNSS foldable antenna from Harxon is a multi-constellation full frequency high gain geodetic surveying antenna. This small form factor antenna employs a foldable design that allows a maximum of 90 degree bending angle for superior GNSS signal availability while integrated with surveying terminals, pads and consoles in the field. Its high sensitivity, low power consumption, small dimensions, flexible angle of signal reception make it a great match for geodetic surveying applications.
This antenna offers full support for reliable and consistent satellite signals tracking, including GPS, GLONASS, Galileo and BeiDou, as well as L-Band. It also exhibits a very stable phase center by adopting multipoint feeding technology, exceptional low elevation satellite tracking with symmetric radiation patterns, high gain with ultralow signal loss, as well as outstanding wide-angle circular polarization (WACP) ensures remarkable positioning accuracy.
The HX-CHX602A GNSS foldable antenna adopts a rugged small form factor foldable design that allows a maximum of 90 degree bending angle, providing the most flexible GNSS signal reception angle for robust signal availability of the surveying control terminals.
For a very small compact multi-constellation antenna, check out the Harxon HX-CH7609A.
The HX-CHX600A Multi-constellation lightweight helix antenna from Harxon is designed for high precision positioning and offers superior satellite signal tracking, including GPS, GLONASS, GALILEO and Beidou as well as L-Band correction service. Its RTK level positioning accuracy makes it ideal to be integrated into application as surveying and mapping, and various UAVs operations.
Harxon’s D-QHA technology ensures more stable performance of wide-angle circular polarization (WACP), and smaller antenna phase center deviation (PCV), which ensures a more precise positioning accuracy.
Strong anti-interference performance through a LNA that features an excellent out-of-band rejection performance, which can suppress the electromagnetic interference, providing stability and reliability of GNSS signals.
The compact dimensions of the HX-CHX600A Multi-constellation lightweight helix antenna of 40×82.6mm (dxh) do not compromise it superior signal tracking capabilities.
The HX-CH7609A helix antenna from Harxon is a high performance GNSS antenna designed for high precision positioning applications and offers superior satellite signal tracking, including GPS, GLONASS, GALILEO, BeiDou, as well as L-Band correction service. Ideal for applications as surveying and mapping, and various UAV deployments.
Despite weighing only 30.5g and with compact dimensions of 43.6×40.8mm (dxh), the HX-CH7609A helix antenna offers a high gain and high accuracy solution and is an easy solution to integrate into many precision positioning projects.
The HX-CH7609A adopts advanced circuit layout and a robust pre-filtered LNA that features an excellent out-of-band interference rejection performance and inhibits possible unwanted electromagnetic interference.
The HX-CH6601A D-Helix GNSS active antenna is able to track visible satellites under challenging conditions, providing
positioning solutions with high precision and reliable data. Its stable phase center guarantees the accuracy of positioning within millimetre level, that can be widely used in plant protection, tree lines, also for UAV power patrol, GIS surveying where high precision operations are
needed.
Supporting GPS L1 and L2, GLONASS L1 and L2, Galileo E1 as well as Beiduo, QZSS and SBAS, this antenna offers a practical and very functional solution for mobile applications requiring precision positioning.
Measuring just 59mm in length and 27.5mm in diameter, the HX-CH6601A antenna weighs just 25g and offers IP67 protection against the elements.
The HX-CH6601A D-Helix GNSS active antenna LNA features excellent out-of-band rejection performance, which can suppress the electromagnetic interference, providing the stability and reliability of GNSS signals. Also it effectively avoids disconnection dangerous when UAVs are operated under tower and electric power patrol.
For more Harxon products, please visit their website and contact us for pricing and availability. Small quantities available from the Connex Webshop.
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