0% Complete
صفحه اصلی
/
بیست و نهمین کنفرانس مهندسی برق ایران
Compact Offset-Beam Four-Layer X-Band Proximity-Coupled Array Antenna in Triangular Grid
نویسندگان :
Hossein Mardani
1
Javad Nourinia
2
Changiz Ghobadi
3
Muhammad Sajjad Ahmad
4
Bahman Mohammadi
5
1- School of Electronics, Electrical Engineering and Computer Science, Queen's University Belfast, Belfast, United Kingdom
2- دانشگاه ارومیه
3- دانشگاه ارومیه
4- School of Electronics, Electrical Engineering and Computer Science, Queen's University Belfast, Belfast, United Kingdom
5- دانشگاه ارومیه
کلمات کلیدی :
Array antenna, four-layer, proximity-coupled element, triangular grid.
چکیده :
In this paper, a compact four-layer offset-beam X-band triangular grid microstrip array antenna with proximity coupled feed patch element is presented. The feed network is in the lower substrate and the radiation elements are in the upper substrate of the array antenna structure, which are isolated by the ground plane in the middle substrate. The feed network is in parallel planar format and utilizes a 1×4 phase shifter power divider to realize a progressive phase shift needed to control the beam direction. The isolation of the feed network from patch elements reduces cross polarization and side lobe levels (SLLs). The patch antenna elements are excited by proximity coupling which increases bandwidth, flexibility in the impedance matching, and simplicity of fabrication, also reduces spurious response. A triangular arrangement is used to reduce mutual coupling and to limit the grating lobes. Moreover, a 4×4 element array antenna with a fixed scan angle at 30° is designed with 1 GHz impedance bandwidth with a center frequency of 9.5 GHz, peak gain of 15.1 dBi and side lobe level (SLL) less than -10 dB in principle planes. In addition, the proposed power supply network structure enables easy PIN and varactor diode phase shifters, which can be used to improve antenna performance by providing reconfigurable and tunable scanning.
لیست مقالات
لیست مقالات بایگانی شده
Exploring Different Machine Learning-based Methods for Learning the Language of Shepna Stock Price
Zoreh Ansari - Jalal Raeisi Gahruei - Mansoor Khademi
A Framework for Plant Topology Extraction Using Process Mining and Alarm Data
Amir Neshastegaran - Ali Norouzifar - ایمان ایزدی
تدوین استراتژی تعمیرات و نگهداری مبتنی بر قابلیت اطمینان در شبکه ی انتقال قدرت
سید سینا طاهری اطاقسرا - مسعود اصغری قراخیلی
پیشبینی بازار سرمایه به کمک دادهکاوی با الگوریتمهای رگرسیونی
شیوا نمایان - محمدشهرام معین
بررسی تاثیر دینامیکی سیستمهای انرژی خورشیدی متصل به شبکه بر بارگذاری ترانسفورماتور و بهبود عملکرد شبکه فشار ضعیف توزیع نیروی برق
مهدی محمدی - رضا خدادی - علی معصومی
Impact of Loss of Generation (LoG) on Directional Overcurrent Protection in Microgrids
Amir Nedaei - Aref Eskandari
Estimation of the Arc Model Parameters Using Heuristic Optimization Methods
Sadegh Ghavami - Ali A Razi-kazemi
Performance improvement of automated parking by considering road incline and wheel slippage
Ali Anisi - Moosa Ayati - Yassin Riyazi - Ali Asadian
ساخت یک تراشه میکروسیالی برای شمارش سلول های معلق در مایع با الکترود های مایع
نرگس حسین زاده - پادینا فرخیان - سیدعلی حسینی
Non-Invasive Blood Pressure Estimation using Poincaré Plot Indices of Photoplethysmography Signals
Fatemeh Shoeibi - Esmaeil Najafiaghdam - Afshin Ebrahimi
بیشتر
ثمین همایش، سامانه مدیریت کنفرانس ها و جشنواره ها - نگارش 41.7.4