Bandwidth Enhancement of Cavity-Backed Slot Antenna Using a Via-Hole Above the Slot

2012 ◽  
Vol 11 ◽  
pp. 1092-1095 ◽  
Author(s):  
Sumin Yun ◽  
Dong-Yeon Kim ◽  
Sangwook Nam
Keyword(s):  
Slot Antenna ◽  
Bandwidth Enhancement ◽  
Via Hole

Bandwidth enhancement of a circularly polarized tapered crossed slot antenna with corner parasitic directors

2020 ◽  
Vol 30 (5) ◽  
Author(s):  
Qiming Yu ◽  
Shaobin Liu ◽  
Xiangkun Kong ◽  
Jianghong Qin ◽  
Yongdiao Wen ◽  
...  
Keyword(s):  
Slot Antenna ◽  
Bandwidth Enhancement ◽  
Circularly Polarized

Rectangular Slot Antenna with Asymmetrical Conductor Strip for Bandwidth Enhancement Coverage UWB Standard

2014 ◽  
pp. 105-115 ◽  
Author(s):  
Tuanjai Archevapanich ◽  
Paitoon Rakluea ◽  
Noppin Anantrasirichai ◽  
Boonchana Purahong ◽  
Vanvisa Chutchavong
Keyword(s):  
Slot Antenna ◽  
Bandwidth Enhancement ◽  
Rectangular Slot ◽  
Conductor Strip

Design of a bandwidth enhanced hybrid slot loop antenna for GSM/UWB standards

Circuit World ◽  
2017 ◽  
Vol 43 (3) ◽  
pp. 105-110 ◽  
Author(s):  
Partibane B. ◽  
Gulam Nabi Alsath M. ◽  
Kalidoss Rajakani
Keyword(s):  
Loop Antenna ◽  
Slot Antenna ◽  
Impedance Bandwidth ◽  
Slot Antennas ◽  
Content Type ◽  
Bandwidth Enhancement ◽  
Microstrip Patch ◽  
Resonant Modes ◽  
Patch Load ◽  
Patch Loading

Purpose This paper aims to presents the bandwidth enhancement of a hybrid slot–loop antenna using a modified feed structure. Design/methodology/approach The conventional monopole feed of the hybrid slot–loop radiator is loaded with a flat microstrip patch to excite higher-order modes. The proposed antenna combines the resonant modes of the slot antenna, the loop antenna and the patch loading. Findings The antenna exhibits a dual-band response suitable for GSM 1800/1900 and ultrawideband (UWB) standards. The impedance bandwidth extends from 1.65 to 1.95 GHz (11.42 per cent) and 3 to 11.1 GHz (114.9 per cent). The proposed antenna has the smallest footprint with a peak gain of 5.07 dBi at 1.8 GHz and 4.97 dBi at 6 GHz. The prototype antenna is fabricated and the simulation results are validated using experimental measurements. The performance of the bandwidth-enhanced hybrid slot–loop antenna is compared with that of other slot antennas. Originality/value Thus, a hybrid slot–loop antenna with an enhanced bandwidth has been reported in this study. The conventional monopole feed of the antenna is replaced with a monopole ending with a microstrip patch load. The antenna covers the operating bands of GSM 1800/1900 and UWB. The proposed antenna has a smaller footprint compared with other wide-slot antennas reported in the literature.

Bandwidth enhancement of dual band-notched circle-like slot antenna

2012 ◽  
Vol 48 (7) ◽  
pp. 356 ◽  
Author(s):  
R. Emadian ◽  
M. Mirmozafari ◽  
C. Ghobadi ◽  
J. Nourinia
Keyword(s):  
Dual Band ◽  
Slot Antenna ◽  
Bandwidth Enhancement

scholarly journals Bandwidth Enhancement of Substrate Integrated Waveguide Cavity-backed Bow-tie-complementary-ring-slot Antenna using a Shorted-via

2018 ◽  
Vol 68 (2) ◽  
pp. 197 ◽  
Author(s):  
Arvind Kumar ◽  
S. Raghavan
Keyword(s):  
Slot Antenna ◽  
Impedance Bandwidth ◽  
Substrate Integrated Waveguide ◽  
Radiation Characteristics ◽  
New Approach ◽  
Bandwidth Enhancement ◽  
The Individual ◽  
Better Than ◽  
Bow Tie ◽  
Good Agreement

In this study, a planar cavity-backed bow-tie-complementary-ring-slot antenna is proposed, and a new approach for bandwidth enhancement using a shorted-via is introduced. A shorted-via concept overcomes the narrow impedance bandwidth of a conventional substrate integrated waveguide cavity-backed antenna. By adjusting the location of the shorted-via (placed just above the centroid of the radiating slot), the individual bandwidth of the lower and higher order resonances has been tuned below -10 dB criterion, which results in the broadening of the bandwidth. Finally, the antenna is proficient to operate for an impedance bandwidth of 15.71 per cent, ranging from 12.02~14.07 GHz. The proposed antenna shows a gain of better than 4 dBi within the operating band with less than 0.5 dBi variation. Moreover, the antenna preserves good radiation characteristics, which is similar to that of the conventional metallic counterpart. To validate the simulated results, an antenna is fabricated and tested. The simulated results in terms of the reflection coefficient, gain, and radiation patterns are in good agreement with the measured results.

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