Design of planar inverted‐F antenna over uniplanar EBG structure for laptop mimo applications

Abstract

Three uniplanar shapes of electromagnetic band gap (EBG) structure as T‐shape, fractal shape, and interdigital capacitors are investigated for antenna applications. The proposed EBG shapes are etched on the ground plane of the planar inverted‐F antenna (PIFA) to improve the impedance bandwidth, reduce the antenna size, increase the gain, and improve radiation pattern. Next, two trapezoidal shaped slots are etched on the radiating plate of PIFA antenna to excite two resonant frequencies. The proposed antenna is designed to cover two narrow bands at GSM 1.8 GHz, upper WLAN 5.2 GHz and a wideband from 2.4 to 4 GHz. Effect of the laptop is investigated on the performance of the proposed antenna. Finally, the effect of these new EBG shapes on mutual coupling reduction between two pair of antennas is studied for multiple input multiple output application in laptop device. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:277–285, 2015

A Review on Different Techniques of Mutual Coupling Reduction Between Elements of Any MIMO Antenna. Part 2: Metamaterials and Many More

“…Lee & Sun, 2008;Q. Li et al, 2014;Lu & Lin, 2013;Manimegalai, 2014;Mavridou et al, 2016;Mohamadzade & Afsahi, 2017;Mohamed et al, 2019;Mu'ath J et al, 2014;Payandehjoo & Abhari, 2009, 2014Qiu-Rong Zheng, Yun-Qi Fu, 2008;Radhi et al, 2019;Rajo-Iglesias et al, 2008;Sharma & Pandey, 2020;Shen et al, 2019;Soliman et al, 2015;Soukoulis, 2002;;S. D. Assimonis et al, 2012;Suntives & Abhari, 2013;Tan et al, 2019;Thakur et al, 2020;Toolabi et al, 2016;W.…”

“…Li et al, 2014). Similarly, many EBG structures have been studied in the literature, among them, few are going to be discussed here: 1-D EBG structure comprises of patterns of grids on the top patch with a metallic ground plane, and both are shorted by several vias (W. Wu et al, 2018); conventional mushroom EBG structure loaded with slots (Lu & Lin, 2013); 4 × 1 array configuration of a unit cell size (6.8 × 6.8 mm) unipolar EBG (Dabas et al, 2018); multi-layered EBG structure (T. Jiang et al, 2018); a novel uni-conductor EBG placed between patch antenna as represented in the Figure 5a (Mohamed et al, 2019); EBG structure based on MTM (Alibakhshikenari et al, 2019b); waveguided MTM realized by crossed-meander-line slits exhibit magnetic resonance as well as the bandgap property (X. M. Yang et al, 2012); another EBG ground structure can be viewed in Figure 5b (Mavridou et al, 2016); some famous uniplanar EBG structure (Abedin & Ali, 2005;Abidin et al, 2018;Farahani et al, 2010;Iqbal et al, 2019;Mohamadzade & Afsahi, 2017;Mu'ath J et al, 2014;Payandehjoo & Abhari, 2009;Soliman et al, 2015;Toolabi et al, 2016); dumbbell-shaped EBG structure (A. Yu & Zhang, 2003); electromagnetic soft surfaces realized by metal strips loaded with C-shaped slots (Chen et al, 2018); multilayer EBG structure (Exposito-Dominguez et al, 2012); MTM inspired EBG structure (Alibakhshikenari et al, 2019a) mushroom type EBG structure (J.…”

Microwave Antennas for Energy Harvesting Applications

“…The capacitor CDC generates an open circuit for the DC voltage and a short circuit for the RF signal. An inductor of 1 µH is used to support complete path to the ground plane in the DC case [84,85]. The comparisons between simulated and measured results are shown in Figure 37.…”

Design of a Novel Triple Band Monopole Antenna for WLAN/WiMAX MIMO Applications in the Laptop Computer

“…Practically, minimum two antennas occupying smaller area with high isolation are needed in order to get the high-speed signal transmission and reception in the laptop computer. Literature [1][2][3][4][5][6][7][8][9][10] reports many promising MIMO antenna array with multiband operations for the laptop computer.…”

“…The standalone monopole antenna used for MIMO array without any isolation element operates at 2.4/3.5/5.5 GHz and having dimensions of 12 × 18 × 0.8mm 3 is reported in [9]. The planar inverted-F antenna along with EBG shape etched on the ground plane for MIMO application in laptop devices is proposed in [10], but has a large dimension of 33.5 × 22 × 5.4mm 3 .…”