scholarly journals Comparison Analysis of Single Loop Resonator Based Miniaturized Triple-Band Planar Monopole Antennas

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Kaimin Wu ◽  
Yongjun Huang ◽  
Ruiming Wen ◽  
Jian Li ◽  
Guangjun Wen

We systemically analyze and discuss a group of miniaturized triple-band planar monopole antennas by integrating with a single loop resonator (SLR) as part of the radiation patch. Two configurations (rectangular and circular shaped radiation patches) are presented and the corresponding SLRs are integrated in the patches to contribute additional operating frequencies. Two feed techniques (coplanar waveguide and microstrip feeds) are performed to couple the electromagnetic waves. The conventional planar monopole antennas without the SLRs are also analyzed comparatively. Numerical and experimental methods are performed to demonstrate and discuss the proposed designs.

Author(s):  
Lei Li ◽  
Jingchang Nan ◽  
Jing Liu ◽  
Chengjian Tao

Abstract A compact ultrawideband (UWB) antenna with reconfigurable triple band notch characteristics is proposed in this paper. The antenna consists of a coplanar waveguide-fed top-cut circular-shaped radiator with two etched C-shaped slots, a pair of split-ring resonators (SRRs) on the backside and four p-type intrinsic n-type (PIN) diodes integrated in the slots and SRRs. By controlling the current distribution in the slots and SRRs, the antenna can realize eight band notch states with independent switch ability, which allows UWB to coexist with 5G (3.3–4.4 GHz)/WiMAX (3.3–3.6 GHz), WLAN (5.15–5.825 GHz), and X-band (7.9–8.4 GHz) bands without interference. By utilizing a nested structure of C-shaped slots and SRRs on the backside, a compact size of 18 × 19.5 mm2 is achieved along with multimode triple band notch reconfigurability. The antenna covers a bandwidth of 3.1–10.6 GHz. A prototype is fabricated and tested. The simulated and experimental results are in good agreement.


2019 ◽  
Vol 8 (3) ◽  
pp. 43-49 ◽  
Author(s):  
A. Kumar ◽  
A. P. S. Pharwaha

This study reports the design of a coplanar waveguide (CPW)-fed triple band fractal antenna for radio navigation and fixed satellite services. Reported antenna has low profile, multiband and wideband performance which make it suitable for the radio navigation and fixed satellite services in S band, C bandand X band. Proposed antenna resonates at 2.6GHz, 4.4GHz, and 8.7 GHz having bandwidth of 0.2457GHz, 0.700GHz, and 4.1980 GHz respectively. Maximumgain for the resonating bands is 3.6 dB, 5.5 dB, and 7.3 dB respectively. Simulated performance parameter of proposed antenna is verified experimentally by testing the fabricated antenna. Measured and simulated results are in good agreement


2008 ◽  
Vol 50 (6) ◽  
pp. 1545-1547
Author(s):  
Chang-Sin Ye ◽  
Yan-Kuin Su ◽  
Min-Hang Weng ◽  
Chun-Yueh Huang

Electronics ◽  
2020 ◽  
Vol 9 (12) ◽  
pp. 2156
Author(s):  
Shunli Li ◽  
Qiuyi Zhang ◽  
Jinlun Li ◽  
Hongxin Zhao ◽  
Xiaoxing Yin ◽  
...  

Direction finding and target tracking make demanding requirements on the measurement of incoming angles of electromagnetic waves. A monopulse antenna, based on the singular symmetric spoof surface plasmon polariton (SSPP) structure, is proposed for high-accuracy angle sensing. The singular SSPP structure is composed of periodic corrugated grooves for the confinement of the electromagnetic fields. Due to the microstrip–coplanar waveguide transition, the fields along both sides of the SSPP add constructively to form the endfire beam at the sum port and destructively to form the null radiation in the endfire direction at the difference port. An optimization based on the team progress algorithm is adopted to facilitate this antenna design. A prototype is designed and fabricated to validate the design principle, and measured results agree with the simulation. The proposed antenna shows a wide bandwidth ranging from 5.0 GHz to 7.5 GHz for both the sum and difference ports with the return loss greater than 10 dB, realizing a relative bandwidth of 40%. The isolation for the sum and difference ports is higher than 21 dB, and the null depth is larger than 20 dB over the entire operating range, which is favorable for the high accuracy angle sensing and measurement. This monopulse antenna has broad prospect in angle measuring systems such as direction finding and radar tracking scenes.


2017 ◽  
Vol 11 (11) ◽  
pp. 1572-1577 ◽  
Author(s):  
S.A. Mohassieb ◽  
Khaled Kirah ◽  
Edgar Dörsam ◽  
Ahmed S.G. Khalil ◽  
Hadia M. El‐Hennawy

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