Design and Performance Analysis of LoRa LPWAN Antenna for IoT Applications

Mushtaq, Aksha; Gupta, Sindhu Hak; Rajawat, Asmita

doi:10.1109/spin48934.2020.9071362

Cited by 12 publications

(5 citation statements)

References 8 publications

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“…The parameters which control an effective LoRa system are the bandwidth available, the obstacles in the path of communication like building, trees, and vehicles, and the frequency of operation 87 . The literature available in antennas implemented on LoRa 88–94 enumerates the following features of LoRa technology as shown in Table 3.…”

Section: Antennas Designed and Implemented For Various Iot‐related Technologiesmentioning

confidence: 99%

Planar and printed antennas for Internet of Things‐enabled environment: Opportunities and challenges

Roges

Malik

2021

Int J Communication

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Summary The Internet of Things (IoT) is the future technology, whose glimpses are already visible in various fields today. IoT promises a connection of about 50 billion devices in the near future to enhance data sharing and analysis between many otherwise independent modules. Smart sensors, smart antennas, and intelligent processors form the backbone of IoT technology. IoT is about remote detection and control of devices which is dependent on the efficient communication system provided. This paper studies the IoT technology, along with its supportive systems, giving an emphasis to the communication module, enabled using microstrip patch antennas. The study takes a walk through the different improvement techniques implemented in patch antennas as DGS, MIMO, and arrays and further pins down the research gaps and objectives that can be taken up in this field with respect to the effective implementation of IoT services. Recent advances in the antenna systems employed in IoT environment are discussed, and the antennas employed in IoT devices and applications are reviewed in detail. Recently evolving technologies like LoRa and NB‐IoT and the ESP8266 module which is widely used in IoT applications are addressed. A good insight is given into the challenges faced in this field along with some recent case studies.

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Section: Antennas Designed and Implemented For Various Iot‐related Technologiesmentioning

confidence: 99%

Planar and printed antennas for Internet of Things‐enabled environment: Opportunities and challenges

Roges

Malik

2021

Int J Communication

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“…The proposed antenna is designed for IoT applications in LoRa frequency band. The novelty as compared to the earlier proposed work [18] is that it aims only at design of a single patch antenna at 433 MHz whereas the proposed work aims at further enhancing the gain of the antenna by proposing a 2 × 1 antenna array. Beam steering is also implemented and its effect on main-lobe direction is also proposed.…”

Section: Loramentioning

confidence: 99%

Design of Antenna Array Based Beam Repositioning for IoT Applications

Mushtaq

Rajawat

Gupta

2021

Wireless Pers Commun

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Internet-of-things has altered pervasive figuring with many applications created around different kinds of sensors/devices. As for these applications lower data-rate is required, so Long Range i.e., LoRa, which is a progressive wireless standard for low power WAN rightly serves this requirement. In the present work, the proposed array antenna has dimensions as 159 × 210 × 2.55 mm 3 with patch of annealed copper and FR-4 (lossy) as the substrate, operating at 433 MHz (LoRa band). Slots are cut in shape of letter 'T' to further improve the performance parameters. The simulation results showed a considerable improvement with the proposed array antenna, as the behavior of the antenna improves in terms of its gain i.e., 2.67 dB which is higher than the gain of single patch i.e., 0.9822 dB. Further the slotted ground plane improved the gain to the best of its value i.e., 3.561 dB. Lastly, beam steering or re-positioning was observed and its effect on main-lobe direction was studied. In this work other parameters like surface current, return loss and current density were also analyzed. The simulations are performed in "Computer Simulation Technology" i.e., CST Microwave Studio. The various parameters have been optimized to obtain the desired values.

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“…In a work presented by [22], a rectangular MPA for Lo-RaWAN applications was designed on a PCB fabricated with FR-4 material. The antenna's design aimed to augment gain and efficiency by incorporating at its ground plane two slots (T-shaped).…”

Section: Introductionmentioning

confidence: 99%

Machine Learning-Optimized Compact Frequency Reconfigurable Antenna With RSSI Enhancement for Long-Range Applications

Yahya,

Soeung,

Rahim

et al. 2024

IEEE Access

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This study presents an innovative and compact monopole antenna with dual-band frequency reconfigurability for LoRa applications. It operates within the 915 MHz and 868 MHz frequencies, aligning with the designated bands for use in America, Asia and Europe. No existing compact reconfigurable antenna with these features for LoRa applications within ISM bands below 1 GHz is known. Employing an economical FR-4 substrate in its design, the antenna attains a compact size of 40 × 42 mm 2 (0.12 λ 0 × 0.12 λ 0 ), where λ 0 denotes the wavelength in free space corresponding to 868 MHz. A single RF PIN diode enables seamless switching between 868 MHz and 915 MHz bands. Design, simulation, and optimization employed CST MWS ® software. Supervised regression Machine Learning (ML) models predicted resonance frequencies, with Gaussian Process Regression emerging as optimal, achieving Rsquared and variance scores of 92.87% and 93.77%, respectively. A maximum gain of 2 dBi at 915 MHz and 70% efficiency, boasting good radiation patterns and matching was demonstrated by the antenna. Experimental validation in a football field at Universiti Teknologi PETRONAS, Malaysia, assessed the proposed antenna's performance on a LoRa transceiver system based on LoRa SX1276. The Received Signal Strength Indicator (RSSI) of the proposed antenna consistently exceeded the conventional commercially available monopole antenna by an average of −12 dBm at every point up to 300 m, showcasing enhanced signal reception. The antenna proves promising for wireless sensor nodes in long-range applications.INDEX TERMS Dual-band, LoRa, PIN-diode, reconfigurable, RSSI.

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Design and Performance Analysis of LoRa LPWAN Antenna for IoT Applications

Cited by 12 publications

References 8 publications

Planar and printed antennas for Internet of Things‐enabled environment: Opportunities and challenges

Planar and printed antennas for Internet of Things‐enabled environment: Opportunities and challenges

Design of Antenna Array Based Beam Repositioning for IoT Applications

Machine Learning-Optimized Compact Frequency Reconfigurable Antenna With RSSI Enhancement for Long-Range Applications

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