Skip to main content

Satellite Communications

3D printed and circularly polarized 28 GHz patch antenna array for small satellite communications


This paper presents the design, fabrication, and testing of a high-gain compact 2 × 2 circularly polarized patch antenna array using 3D printing technology for small satellite 5G communication at 28 GHz. The proposed antenna demonstrates high efficiency and a low profile, addressing the limitations in design flexibility associated with traditional PCB fabrication methods. The 2 × 2 array configuration, incorporating via fences, coaxial vertical feedlines, and a sequentially rotated phased feed network, enhances the antenna's bandwidth and axial ratio bandwidth while maintaining compactness, crucial for space-constrained satellite applications.

Simulations optimized key antenna parameters, including reflection coefficient, gain, and axial ratio. Measurement results validated the simulations, showing an impedance bandwidth of 6.8 GHz and an axial ratio bandwidth of 3.1 GHz, with a peak gain of 6.33 dB. Thermal cycling and electrical tests ensured the antenna's durability in space environments, demonstrating its potential for satellite use. These results indicate that 3D-printed antennas offer advantages in performance, cost, and manufacturing flexibility for satellite communication applications.

This study demonstrates the feasibility of using 3D printing technology to fabricate a compact 2 × 2 circularly polarized patch antenna array for small satellite communication at 28 GHz. The proposed antenna shows promising performance in gain and circular polarization characteristics with the array displacement method and via fence structure with a separated sequentially rotated feed network, addressing the limitations of traditional PCB fabrication. Simulation results show that the arrayed antenna achieves an impedance bandwidth of 6.20 GHz, the axial ratio bandwidth of 3.49 GHz, and a 28 GHz gain of 9.31 dB.

Measurement results demonstrate that the arrayed antenna achieves an impedance bandwidth of 8.00 GHz, an axial ratio bandwidth of 3.1 GHz, and a 28 GHz gain of 6.44 dB, which is well matched to the prediction of the array structure tendency from simulation results, which indicate that array displacement increases antenna performance.

These performance metrics represent improvements over conventional patch antennas, enhancing the reliability of high-frequency communication in terms of compactness and circularly polarized antenna efficiency. Additionally, thermal cycling tests confirmed the antenna's durability in space environments, demonstrating its potential for space and small satellite applications.

satellite, orbit, geostationary, payload, transponder, telemetry, uplink, downlink, satellite-navigation, remote-sensing, weather-satellite, earth-observation, communications-satellite, satellite-imaging, GPS, satellite-constellation, space-segment, ground-station, satellite-launch, satellite-tracking

#satellite, #space, #orbit, #geostationary, #payload, #telemetry, #uplink, #downlink, #navigation, #remotesensing, #weathersatellite, #earthobservation, #communicationsatellite, #satelliteimaging, #GPS, #satelliteconstellation, #spacesegment, #groundstation, #satellitelaunch, #satellitetracking

Comments

Post a Comment

Popular posts from this blog

HealthAIoT: Revolutionizing Smart Healthcare! HealthAIoT combines Artificial Intelligence and the Internet of Things to transform healthcare through real-time monitoring, predictive analytics, and personalized treatment. It enables smarter diagnostics, remote patient care, and proactive health management, enhancing efficiency and outcomes while reducing costs. HealthAIoT is the future of connected, intelligent, and patient-centric healthcare systems. What is HealthAIoT? HealthAIoT is the convergence of Artificial Intelligence (AI) and the Internet of Things (IoT) in the healthcare industry. It integrates smart devices, sensors, and wearables with AI-powered software to monitor, diagnose, and manage health conditions in real-time. This fusion is enabling a new era of smart, connected, and intelligent healthcare systems . Key Components IoT Devices in Healthcare Wearables (e.g., smartwatches, fitness trackers) Medical devices (e.g., glucose monitors, heart rate sensors) Rem...
Post a Comment
Read more
Detecting Co-Resident Attacks in 5G Clouds! Detecting co-resident attacks in 5G clouds involves identifying malicious activities where attackers share physical cloud resources with victims to steal data or disrupt services. Techniques like machine learning, behavioral analysis, and resource monitoring help detect unusual patterns, ensuring stronger security and privacy in 5G cloud environments. Detecting Co-Resident Attacks in 5G Clouds In a 5G cloud environment, many different users (including businesses and individuals) share the same physical infrastructure through virtualization technologies like Virtual Machines (VMs) and containers. Co-resident attacks occur when a malicious user manages to place their VM or container on the same physical server as a target. Once co-residency is achieved, attackers can exploit shared resources like CPU caches, memory buses, or network interfaces to gather sensitive information or launch denial-of-service (DoS) attacks. Why are Co-Resident Attack...
Post a Comment
Read more

Network Architecture

An introduction to satellite network architecture Satellite networking is a digital revolution that connects people from across the world instantly -- from enabling real-time communications to making the world a safer place. A satellite is an artificial object put into the Earth's orbit to gather and distribute crucial data. Since the late 1950s, satellites have only transmitted and received data, as bent pipe satellites weren't able to perform other functions. In modern times, a group of satellites in the same orbit forms a satellite network. Satellite networks process data and provide accurate visual and textual information. Unlike terrestrial network infrastructure, satellite network scalability isn't limited by geography and cost. According to a March 2025 report from Goldman Sachs, the global satellite market is expected to hit $108 billion by 2035, growing sevenfold from its current valuation. Satellite networks consist of the following: The ground equipment. The sa...
Post a Comment
Read more