Construction method of 30-m-class large planar antenna using electromagnet connection mechanism
نویسندگان
چکیده
منابع مشابه
an infinite planar array of rectangular microstrip patch antenna analysis
the methods which are used to analyze microstrip antennas, are divited into three categories: empirical methods, semi-empirical methods and full-wave analysis. empirical and semi-empirical methods are generally based on some fundamental simplifying assumptions about quality of surface current distribution and substrate thickness. thses simplificatioms cause low accuracy in field evaluation. ful...
15 صفحه اولA Pattern Synthesis Method for Large Planar Antenna Array
The pattern synthesis for large antenna arrays is very important because of its wide applications. Several antenna array synthesis techniques for planar antenna array have been developed in the past years. In this paper, a hybrid method for solving antenna array pattern synthesis problem is introduced. The proposed method has three steps. Firstly, the iterative fast Fourier transforms (IFT) is ...
متن کاملbuckling of viscoelastic composite plates using the finite strip method
در سال های اخیر، تقاضای استفاده از تئوری خطی ویسکوالاستیسیته بیشتر شده است. با افزایش استفاده از کامپوزیت های پیشرفته در صنایع هوایی و همچنین استفاده روزافزون از مواد پلیمری، اهمیت روش های دقیق طراحی و تحلیل چنین ساختارهایی بیشتر شده است. این مواد جدید از خودشان رفتارهای مکانیکی ارائه می دهند که با تئوری های الاستیسیته و ویسکوزیته، نمی توان آن ها را توصیف کرد. این مواد، خواص ویسکوالاستیک دارند....
Design and Construction of a Large Aperture, Quadrupole Electromagnet Prototype for ILSE
We are currently constructing a prototype quadrupole electromagnet for the proposed Induction Linac Systems Experiment (ILSE) at LBL. ILSE will address many physics and engineering issues relevant to the design of a heavyion fusion driver accelerator. The pulsed electromagnet has two layers of current windings and will produce a field gradient exceeding 25 T/m at a repetition rate of 1 Hz stead...
متن کاملRF-M/NEMS Switch Integrated Planar Inverted F-Antenna (PIFA)
We propose a novel multifunctional reconfigurable antenna (MRA) design using micro/nanoelectromechanical system (M/NEMS) switches. This single MRA operates over five frequency bands of GSM900, GPS1575, GSM1800, PCS1900 and UMTS2100. The reconfigurability in operating frequency is achieved by the activation of M/NEMS switches which are integrated with the antenna architecture. Summary of Researc...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Transactions of the JSME (in Japanese)
سال: 2018
ISSN: 2187-9761
DOI: 10.1299/transjsme.18-00248