A frequency reconfigurable antenna with consistent radiation characteristics

Author(s):  
Rocktotpal Baruah ◽  
Nidhi S. Bhattacharyya
Frequenz ◽  
2018 ◽  
Vol 72 (5-6) ◽  
pp. 167-172
Author(s):  
Lingsheng Yang ◽  
Biyu Cheng ◽  
Hongting Jia

AbstractIn this paper, a frequency reconfigurable antenna for 5 G/LTE/WWAN mobile terminal applications is presented. The proposed antenna consists of a radiation element which is folded on a dielectric cuboid. Four PIN diodes located on the antenna element are used for frequency reconfigration. By controlling the states of four PIN diodes with an 8-bit microcontroller, a broad band which can cover deca-band as LTE700/2300/2500, GSM850/900/1800/1900, UMTS 2100, WLAN2400 and the future 5 G or LTE3600 is obtained with a compacted size of 40×8×5mm3. The antenna gain, efficiency and radiation characteristics are also shown.


IEEE Access ◽  
2021 ◽  
pp. 1-1
Author(s):  
Geriki Polaiah ◽  
Krishnamoorthy Kandasamy ◽  
Muralidhar Kulkarni

IEEE Access ◽  
2021 ◽  
Vol 9 ◽  
pp. 2839-2845
Author(s):  
Jiamei Qin ◽  
Xuedong Fu ◽  
Mingyu Sun ◽  
Qiang Ren ◽  
Aixin Chen

2021 ◽  
Vol 36 (5) ◽  
pp. 542-547
Author(s):  
Sheng-lan Wang ◽  
Jing-Song Hong ◽  
Yan Deng ◽  
Zhi-jian Chen

In this paper, a frequency reconfigurable antenna was presented. This antenna is made up of a square loop and a microstrip line with a gap, in which the few layer graphene (FLG) sheet is located to achieve frequency reconfigurable. FLG is likes a lumped resistor with resistance. And the surface impedance can be adjusted by applying a direct current bias voltage, which obtains two work modes that imitate switch. Additionally, the experimental evidence show the proposed frequency reconfigurable antenna can provide a tunable bandwidth.


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