A Novel Dual-Band “C+O” Structure Antenna

Xie, Tangyao; Yu, Junsheng; Lin, Ziheng; Li, Yao; Zhang, Guodong; Yu, Zhen

doi:10.1155/2021/7974349

Cited by 3 publications

(2 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Examples include the use of plane-opposed Vivaldi miniature antennas inspired by natural ferns [7], a broadband antenna that simulates the shape of a ginkgo leaf [8], multiband antennas imitating banana leaves [9], and slot-shaped antennas imitating the shadow of butterfly wings under the sun [10,11]. The antenna can change the available frequency band from single frequency to dual frequency by adding semicircular arc branches to the circular monopole to form a "C + O" structure [12].…”

Section: Introductionmentioning

confidence: 99%

A Novel Chrysanthemum-Like Fractal Structure Multi-Band Antenna for Mobile Terminals

Lin

Zhang

et al. 2023

International Journal of RF and Microwave Computer-Aided Engine

Self Cite

View full text Add to dashboard Cite

This paper incorporates the structural characteristics of chrysanthemums in nature and fractal geometry theory into the antenna structure design and a novel-structured fractal multiband fractal microstrip antenna with a chrysanthemum petal structure is proposed. The antenna can cover commercial frequency bands from the second to fourth generation (4G), satellite navigation, wireless local area networks, and Bluetooth. The antenna radiator imitates the structure of chrysanthemum’s petals in nature, and a basic arc shape is iterated many times according to a certain proportional coefficient. After simulation and comparison, the second iteration can achieve the best antenna performance, and the antenna adopted the coplanar waveguide feeding method to broaden the antenna bandwidth. The antenna covers three effective frequency bands of 1.58–2.68 GHz (64.7%), 2.76–4.01 GHz (33.9%), and 4.68–5.35 GHz (13.4%). The antenna dielectric board is made of FR-4 material, the dielectric constant is 4.4, and the actual size is 41 × 29 × 1.6 mm3. The antenna performs fractal iteration at a small size, and the approximate calculation of the frequency band is completed by comparing the ratio of each ring to the current vector diagram. The design of the antenna is to use HFSS for antenna modeling and parameter optimization, and the model under different conditions were compared and analyzed. By comparing the test results of the antenna prototype with the simulation structure in the electromagnetic anechoic chamber, the rationality of the antenna is verified.

show abstract

Section: Introductionmentioning

confidence: 99%

A Novel Chrysanthemum-Like Fractal Structure Multi-Band Antenna for Mobile Terminals

Lin

Zhang

et al. 2023

International Journal of RF and Microwave Computer-Aided Engine

Self Cite

View full text Add to dashboard Cite

show abstract

“…Several methods for enhancing patch antennas with dualband operation have been documented in the literature. In dual band antenna were designed in various mechanisms among them based on artificial magnetic conductor [6], and C and O slot structure [7] were presented. U-shaped slot dualband patch antenna resonates at 28GHZ and 38GHz is described [8].…”

Section: Introductionmentioning

confidence: 99%

Bandwidth Improvment of Dualband mm-wave Microstrip Antenna Using Genetic Algorithm

Dejen¹,

Anguera²,

Jayasinghe³

et al. 2023

IJCDS

View full text Add to dashboard Cite

The necessity for multi-functional antennas with achievable performance from a single device is increasing dramatically. At the same, dual-band rectangular microstrip antennas are essential for a varieties of applications in mm-wave communication. This study aims to use a genetic algorithm to enhance the operating bandwidth of a dualband mm-wave microstrip antenna for wireless communication with binary-coded scheme. The patch surface was optimized by gridding it into 10X10 tiny rectangular blocks and designing them as non-conducting and conducting features to them. The proposed method has iteratively modeled the antenna using a Ansys HFSS and MATLAB to identify best fitted antenna. The optimized antenna has resonated at 39.1 GHz center frequency with 7.6 dB peak gain with 1.6 GHz bandwidth and at 50.2 GHz center frequency with 7.3 dB peak gain and 3.3 GHz bandwidth. The antenna's total efficiency is 71.4 % at 39.1 GHz and 92.8 % at 50.2 GHz.

show abstract

Fabric–Metal Barrier for Low Specific Absorption Rate and Wide-Band Felt Substrate Antenna for Medical and 5G Applications

et al. 2023

View full text Add to dashboard Cite

This study proposed the dimensions of 55 mm × 34 mm × 1 mm for wearable antenna; the copper Y-slot patch and copper partial ground are attached to a felt substrate. The partial ground has the higher impact in antenna gain enhancement compared with the full ground, making it the most suitable candidate for wearable applications and suitable for embedding in fabrics for use in medical applications. In addition, the proposed antenna design combined a fabric–metal barrier operated at 2.4 GHz 65.4% with a low specific absorption rate (SAR) of 0.01 watts per kilogramme (W/kg) and 0.006 W/kg per 10 g and a gain of 6.48 dBi. The proposed antenna has an omnidirectional radiation pattern. The two-layer barrier is designed to achieve high electromagnetic (EM) absorption and reduce the antenna’s absorption coefficient (SAR) for safe use in applications involving human activities. Simulation and measurement results on the arm and the head of the human body indicated that the antenna has excellent performance. In addition, the measurement results agreed well with the simulation results, making the proposed wearable antenna reliable for medical and 5G applications.

show abstract

A Novel Dual-Band “C+O” Structure Antenna

Cited by 3 publications

References 19 publications

A Novel Chrysanthemum-Like Fractal Structure Multi-Band Antenna for Mobile Terminals

A Novel Chrysanthemum-Like Fractal Structure Multi-Band Antenna for Mobile Terminals

Bandwidth Improvment of Dualband mm-wave Microstrip Antenna Using Genetic Algorithm

Fabric–Metal Barrier for Low Specific Absorption Rate and Wide-Band Felt Substrate Antenna for Medical and 5G Applications

Contact Info

Product

Resources

About