Dual-band smooth-wall conical horn with low cross-polarization

2005 ◽  
Author(s):  
E. Carpenter
Keyword(s):  
Dual Band ◽  
Cross Polarization ◽  
Smooth Wall ◽  
Conical Horn

Dual-Band, Differentially-Fed Filtenna with Wide Bandwidth, High Selectivity and Low Cross-Polarization

2022 ◽  
pp. 1-1
Author(s):  
Dajiang Li ◽  
Ming-Chun Tang ◽  
Yang Wang ◽  
Kun-Zhi Hu ◽  
Richard W. Ziolkowski
Keyword(s):  
High Selectivity ◽  
Dual Band ◽  
Cross Polarization ◽  
Wide Bandwidth

scholarly journals Study of Feed Horn Solutions for Irbene RT-32 Radio Telescope

2020 ◽  
Vol 57 (1-2) ◽  
pp. 28-33
Author(s):  
M. Bleiders
Keyword(s):  
Genetic Algorithm ◽  
Mode Matching ◽  
Cross Polarization ◽  
Smooth Wall ◽  
Scattering Parameters ◽  
Electrical Parameters ◽  
Physical Size ◽  
Matching Technique ◽  
Efficiency Performance ◽  
Feasible Solutions

AbstractVarious feasible solutions of Irbene RT-32 secondary focus feed antennas are designed and compared in the present study. The examined feed antennas include smooth wall and corrugated horns with linear and shaped profiles. Mode matching technique is employed for simulation of scattering parameters and radiation patterns. Genetic algorithm is used for optimisation of horn profile for the best cross-polarization, and aperture efficiency performance. Although the presented horns are valid for any frequency band, different solutions allow choosing the best combination of factors, such as electrical parameters, bandwidth, physical size and complexity of manufacturing.

scholarly journals PERANCANGAN DAN ANALISIS MIMO MIKROSTRIP PATCH RECTANGULAR DUAL BAND ( 6 GHz DAN 28 GHz) UNTUK KOMUNIKASI INDOOR

2019 ◽  
Vol 3 (1) ◽  
pp. 23
Author(s):  
Dziqru Akbar ◽  
RIna Pudji Astuti ◽  
Bambang Setia Nugroho
Keyword(s):  
Internet Of Things ◽  
Mutual Coupling ◽  
Dual Band ◽  
Cross Polarization

Teknologi 5G adalah sebuah fase selanjutnya dari teknologi 4G. Kandidat frekuensi yang akandigunakan pada teknologi 5G berada pada spektrum gelombang milimeter. Salah satu teknologi yangmendukung 5G adalah MIMO. Internet of Things(IoT) sebagai bagian dari teknologi 5G perludikembangkan di Indonesia khususnya untuk mendukung komunikasi indoor sekaligus outdoor. Salahsatu spektrum frekuensi 5G adalah 28 GHz. Pada penelitian sebelumnya, terdapat desain compact arraymassive MIMO dual-band antena dengan menggunakan patch cross dan persegi tetapi berada padafrekuensi 5,4 GHz dan 15 GHz. Pada penelitian ini dirancang antena MIMO mikrostrip yang bekerjapada frekuensi 6 GHz dan 28 GHz dengan masing-masing frekuensi memiliki patch dan dimensi yangberbeda. Antena dirancang dengan menggunakan metode compact MIMO tetapi dengan desain yangsedikit berbeda dan hanya menggunakan patch persegi saja. Antena memiliki pola radiasi unidireksional,polarisasi linear, dan teknik pencatuannya adalah proximity coupled serta cross polarization. Hasil dariperancangan yang dilakukan, didapatkan antena MIMO dual-band di 6 GHz dan 28 GHz dengan nilaiparameter S11 terbesar -17,7 dB, gain terkecil sebesar 4,86 dBi, dan bandwidth 870 MHz untuk frekuensi28 GHz dan 60,2 MHz untuk frekuensi 6 GHz. Setelah dilakukan perancangan, selanjutnya dilakukananalisis terhadap parameter gain, pola radiasi, koefisien korelasi, dan mutual coupling.

Dual Band Edge Wall Slotted Array Antenna with Reduced Cross Polarization at X Band

2018 ◽  
Author(s):  
Baisakhi Bandyopadhyay ◽  
Amartya Banerjee ◽  
Sayan Chatterjee ◽  
Arijit Maiumder
Keyword(s):  
Array Antenna ◽  
Band Edge ◽  
Dual Band ◽  
Cross Polarization ◽  
X Band

scholarly journals Dual-Band Patch Antenna Fed by Meandering Probe for Low Cross-Polarization

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Xiao-Lan Zhao ◽  
Quan Wei Lin
Keyword(s):  
Reflection Coefficient ◽  
Patch Antenna ◽  
Dual Band ◽  
Cross Polarization ◽  
Frequency Range ◽  
Face To Face ◽  
Resonance Modes ◽  
The Cross ◽  
Polarization Level

This paper presents a dual-band patch antenna loaded with face-to-face U-shaped slots fed by a substrate-integrated meandering probe (SIM-probe). With the presence of U-shaped slots, two current paths are formed, which leads to the resonance modes at 2.4 and 3.65 GHz on the patch. The SIM-probe suppresses the unwanted cross-polarization radiations by providing out-of-phase vertical currents from vertical metallic vias. To verify our work, a prototype was fabricated and tested. The proposed antenna achieves the impedance bandwidths of 9.4% and 9% from the frequency range of 2.34–2.57 GHz and 3.5–3.83 GHz (for the reflection coefficient ≤ −10 dB) and obtains average gains of 5.8 dBi and 6.8 dBi at both bands. The cross-polarization level is below −20 dB. Measured results agree well with the simulation.

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