A Compact Reconfigurable Multi-frequency Patch Antenna for LoRa IoT Applications Article Swipe
Muhammad Sani Yahya
,
Socheatra Soeung
,
Francis Emmanuel Chinda
,
Sharul Kamal Abdul Rahim
,
Umar Musa
,
Nursyarizal B. M. Nor
,
Sovuthy Cheab
·
YOU?
·
· 2023
· Open Access
·
· DOI: https://doi.org/10.2528/pierm23021804
YOU?
·
· 2023
· Open Access
·
· DOI: https://doi.org/10.2528/pierm23021804
In this study, a compact, reconfigurable, and high-efficiency Long Range (LoRa) patch antenna, which is novel, is presented for Internet of Things (IoT) applications.The antenna is designed to operate at the three major frequencies used for LoRa communication, namely 915 MHz, 868 MHz, and 433 MHz, which are widely employed for global LoRa connectivity.The compact size and impedance matching of the antenna are achieved through the use of meandered radiating patches, a partial ground plane, and a ground plane stub.The antenna is prototyped on a commercially available and cost-effective FR-4 material and measures 80 mm × 50 mm × 1.6 mm (0.12λ × 0.07λ at the lowest resonant frequency), which is smaller than the size of a standard credit card.The antenna utilizes three RF PIN diodes (SW1, SW2, and SW3) for frequency reconfiguration, which are characterized by low insertion loss and fast switching time.The RLC equivalent circuit of the antenna was validated through simulations and measurements, yielding the peak gain and radiation efficiency of 2.1 dBi and > 90%, respectively.These results prove that the antenna is a promising solution for LoRa IoT applications in terms of size, cost, and performance, filling a gap in the existing literature of LoRa MPAs that are typically large, non-reconfigurable, low-gain, and single-band. INTRODUCTIONLoRa is a wireless communication technology that operates in the unlicensed ISM band, providing longrange, low-power communication for IoT applications.It enables communication over long distances (more than 15 km in rural areas) and through obstacles, making it suitable for applications in smart agriculture, smart cities, industrial automation, etc. [1].LoRa employs a method of spread-spectrum modulation known as Chirp Spread Spectrum (CSS), which allows the signal to travel farther than traditional narrowband signals by spreading the signal over a wide frequency band.In addition, LoRa utilizes a technique where the signal hops across multiple frequencies, known as FHSS (Frequency-Hopping Spread Spectrum), to mitigate interference from other devices and facilitate simultaneous data transmission and reception by multiple devices [2][3][4][5].This combination of spread-spectrum modulation and FHSS allows LoRa to cover long distance of data transmission, typically extending several kilometers in rural areas.It also enables communication through obstacles such as buildings and trees.This feature enables the use of LoRa in a wide variety of settings, including smart cities, smart agriculture, industrial automation, logistics, supply chain, and environmental.All these capabilities make LoRa a reliable and cost-effective solution for wireless communication over long distances and in low-power devices for IoT applications.
Related Topics
Concepts
Computer science
Reconfigurable antenna
Internet of Things
Antenna (radio)
Patch antenna
Smart antenna
Telecommunications
Embedded system
Microstrip antenna
Omnidirectional antenna
Antenna efficiency
Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.2528/pierm23021804
- https://www.jpier.org/ac_api/download.php?id=23021804
- OA Status
- diamond
- Cited By
- 12
- References
- 20
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4362592858
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W4362592858Canonical identifier for this work in OpenAlex
- DOI
-
https://doi.org/10.2528/pierm23021804Digital Object Identifier
- Title
-
A Compact Reconfigurable Multi-frequency Patch Antenna for LoRa IoT ApplicationsWork title
- Type
-
articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2023Year of publication
- Publication date
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2023-01-01Full publication date if available
- Authors
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Muhammad Sani Yahya, Socheatra Soeung, Francis Emmanuel Chinda, Sharul Kamal Abdul Rahim, Umar Musa, Nursyarizal B. M. Nor, Sovuthy CheabList of authors in order
- Landing page
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https://doi.org/10.2528/pierm23021804Publisher landing page
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https://www.jpier.org/ac_api/download.php?id=23021804Direct link to full text PDF
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YesWhether a free full text is available
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diamondOpen access status per OpenAlex
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https://www.jpier.org/ac_api/download.php?id=23021804Direct OA link when available
- Concepts
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Computer science, Reconfigurable antenna, Internet of Things, Antenna (radio), Patch antenna, Smart antenna, Telecommunications, Embedded system, Microstrip antenna, Omnidirectional antenna, Antenna efficiencyTop concepts (fields/topics) attached by OpenAlex
- Cited by
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12Total citation count in OpenAlex
- Citations by year (recent)
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2025: 4, 2024: 5, 2023: 3Per-year citation counts (last 5 years)
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20Number of works referenced by this work
- Related works (count)
-
10Other works algorithmically related by OpenAlex
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