لطفا منتظر بمانید ...
0% Complete
صفحه اصلی
/
سی و چهارمین کنفرانس بین المللی مهندسی برق
Ultrathin Frequency-Selective Polarization Converter Based on SIW Cavity
نویسندگان :
Amin Azimi
1
Mohmmad H Neshati
2
1- دانشگاه علم و صنعت ایران
2- دانشگاه فردوسی مشهد
کلمات کلیدی :
polarization conversion،substrate integrated waveguide cavity (SIWC)،frequency selective surface (FSS)
چکیده :
A compact, single-layer SIW cavity–based linear-to-circular polarization converter is presented. The unit cell, realized on Rogers RT/duroid 5880 (εr = 2.2, tanδ = 0.0009, h = 1.57 mm) and sized for the TE₁₁₀ resonance mode (17.5 × 17.5 mm²), employs a front cross-shaped slot and a three-slot rectangular array on the backside. Floquet-mode simulations show that slot-length tuning and parametric optimization yield near-equal co- and cross-polar transmission with a ° phase quadrature, producing a circular polarization (CP) wave at 9.8 GHz. The resulting design achieves a 7.1% relative axial-ratio bandwidth (B.W) with only 0.35 dB insertion loss (IL). A 9×9 array assembly fed by a standard horn provides an aperture gain of 13.7 dBi and good radiation characteristics. The proposed structure offers low IL, a suitable axial-ratio (AR) bandwidth, and a single-layer profile for a compact X-band CP.
لیست مقالات
لیست مقالات بایگانی شده
Deep Learning-Based Simultaneous Estimation of Elbow Joint Angle and Angular Velocity from Surface EMG Using RMS and dRMS Features
Pouria Sheikhi - Arshia Ghodsi - Mohammad Zareinejad
Primary-Side Nonlinear Model Predictive Control for Dynamic Wireless Power Transfer System in Electric Vehicles
Kioumars Shahriari - Salar Sadeghian - Sahand Fardadidokht Fooman - Adib Abrishamifar
An Improved Nonlinear Observer-Based Integrated Guidance and Control for Hypersonic Flight Vehicle with Angle Constraints
Seyedeh Mahsa Zakipour Bahambari - Saeed Khankalantary
Adaptive Smooth Super Twisting Sliding Mode Control for Parkinson's Tremor Treatment
Reyhaneh Valibeik - ّFatemeh Jahangiri - Mostafa Abedi
Improved Attention U-Net combined with Conditional Random Field for Ischemic Lesion Segmentation from Magnetic Resonance Images
Ali Rezaei - Asieh Khosravanian - Habibollah Danyali - Kamran Kazemi - Ardalan Aarabi
مدل سازی فشرده و شبیه سازی گذار عایق به هادی در افزاره مات مبتنی بر VO2
پرناز عباسی - مجید شالچیان
Improved Operational Stability of CsFAMA Perovskite Solar Cells Through the Incorporation of Tetrabutylammonium Perchlorate in the Precursor
Ali Baghban Parashkouh - Ali Sadr - Maryam Heidariramsheh - Nima Taghavinia
Classification of Brain tumor patients by Dynamic connectivity and Hybrid CNN–LSTM Models application on fMRI Data
Shokoufeh Akbari - Karim Abbasian - Somayeh Makouie - Maryam Shoaran - Farzam Sheikhzadeh
A Multi-domain Fuzzy Ensemble Approach for Epileptic Seizure Detection
Samin Shahraki - Alireza Hajabdollah javaheri - Mahdi Pourgholi - Pedram Safarpour
Design of Dual-Band Triangular Microstrip Antenna Using Fractal Structure for Wi-Max and Wi-Fi Applications
Arian Mianji - Mohammad Bemani - Saeid Nikmehr - Ahmad Atashpaz Gargari
بیشتر
ثمین همایش، سامانه مدیریت کنفرانس ها و جشنواره ها - نگارش 44.7.2
