Wideband HMSIW‐based slotted antenna for wireless fidelity application

2019 ◽  
Vol 13 (2) ◽  
pp. 258-262 ◽  
Author(s):  
Divya Chaturvedi ◽  
Arvind Kumar ◽  
Singaravelu Raghavan
2018 ◽  
Vol 6 (7) ◽  
pp. 161-167
Author(s):  
Neha Dayaram Amrutkar ◽  
S. S. Morad

Frequenz ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Hamsakutty Vettikalladi ◽  
Waleed Tariq Sethi ◽  
Mohammed Himdi ◽  
Majeed Alkanhal

Abstract This article presents a 60 GHz coplanar fed slotted antenna based on substrate integrated waveguide (SIW) technology for beam-tilting applications. The longitudinal passive slots are fed via associated SIW holes adjacent to the coplanar feed while the main excitation is provided from the microstrip-to-SIW transition. The antenna array achieves an impedance bandwidth of 57–64 GHz with gains reaching to 12 dBi. The passive SIW slots are excited with various orientations of coplanar feeds and associated holes covering an angular beam-tilting from −56° to +56° with an offset of 10° at the central frequency. The novelty of this work is; beam-tilting is achieved without the use of any active/passive phase shifters which improves the design in terms of losses and provide a much simpler alternative compared to the complex geometries available in the literature at the 60 GHz band.


Electronics ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 1415
Author(s):  
Mian Muhammad Kamal ◽  
Shouyi Yang ◽  
Saad Hassan Kiani ◽  
Muhammad Rizwan Anjum ◽  
Mohammad Alibakhshikenari ◽  
...  

This article presents compact and novel shape ring-slotted antenna array operating at mmWave band on central frequency of 28 GHz. The proposed structure designed at 0.256 mm thin Roggers 5880 is composed of a ring shape patch with a square slot etched at the top mid-section of partial ground plane. Through optimizing the ring and square slot parameters, a high bandwidth of 8 GHz is achieved, ranging from 26 to 32 GHz, with a simulated gain of 3.95 dBi and total efficiency of 96% for a single element. The proposed structure is further transformed in a 4-element linear array manner. With compact dimensions of 20 mm × 22 mm for array, the proposed antenna delivers a high simulated gain of 10.7 dBi and is designed in such a way that it exhibits dual beam response over the entire band of interest and simulated results agree with fabricated prototype measurements.


Author(s):  
Sachin Kalraiya ◽  
Hari Shankar Singh ◽  
Gaurav Kumar Pandey ◽  
Awadhesh Kumar Singh ◽  
Manoj Kumar Meshram
Keyword(s):  

2021 ◽  
Vol 20 (1) ◽  
pp. 89
Author(s):  
M Zatiar Erwan Kalam ◽  
Ni Made Ary Esta Dewi Wirastuti ◽  
I Made Oka Widyantara

Jaringan komunikasi semakin bergantung pada WLAN, maka semakin tinggi tuntutan Quality of Service (QoS) WLAN seperti Throughput, delay, dan jitter Untuk menjaga keamanan media komunikasi data, maka digunakan mekanisme keamanan jaringan Wired Equivalent Privacy (WEP), WiFi Protected Access (WPA), dan WPA2 [14]. Mall Bali Galeria memiliki beberapa alternatif Free WiFi. Banyaknya Wi-Fi yang terpasang menimbulkan permasalahan interferensi yang mempengaruhi unjuk kerja jaringan WiFi, MBG sendiri memiliki area Indoor dan Outdoor, Alternatif untuk mengatasi interferensi adalah dengan melakukan automasi penkanalan dengan menerapkan Channel Fly, Background Scanning dan Static Channel. Dari mekanisme keamanan, Penkanalan dan frekuensi dibuat skenario dilakukan penelitian pada setiap askes point untuk mendapatkan skenario terbaik, dari skenario yang diajukan, nilai Paket loss terbaik lingkungan indoor AP 4 dengan skenario frekuensi 5Ghz, Statik Channel, WEP-64 paket loss 0,016 ms, lingkungan outdoor AP 5 Frekuensi 5Ghz, Channel Fly, WEP-64 paket loss 0.094 ms, nilai Jitter terbaik lingkungan indoor AP 2 5Ghz Background Scanning, WPA 2, Jitter 1.336 ms, lingkungan outdoor AP 8 5Ghz, Statik Channel, WPA2-Mixed Jitter 1,116 ms, nilai Throughput terbaik lingkungan indoor AP 1 5Ghz, Statik channel, WPA2-Mixed, Throughput 78,7Mbps, untuk Outdoor AP 8 5Ghz, Background Scanning, Disable Security, Throughput 80Mbps jika dibandingkan dengan skenario eksisting performa unjuk kerja meningkat sebesar 10-30%. WEP memiliki nilai packet loss baik tetapi memiliki nilai Throughput yang lebih kecil. Static channel disarankan pada lokasi yang memiliki interferensi tinggi.


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