By A. Z. Fradin (Auth.)
Read Online or Download Microwave Antennas PDF
Best microwaves books
Microwave Circuits for 24 GHz Automotive Radar in Silicon-based Technologies
There are non-stop efforts focussed on bettering highway site visitors defense around the globe. quite a few automobile security measures resembling driving force suggestions structures were invented. Many motive force tips positive aspects depend on radar-based sensors, yet are pricey. consciousness of inexpensive radar front-end circuits could permit their implementation in more cost-effective economic system automobiles, significantly contributing to site visitors defense.
Geometric Optics: Theory and Design of Astronomical Optical Systems Using Mathematica®
This book—unique within the literature—provides readers with the mathematical historical past had to layout a number of the optical mixtures which are utilized in astronomical telescopes and cameras. the consequences awarded within the paintings have been got through the use of a distinct method of third-order aberration thought in addition to the vast use of the software program package deal Mathematica®.
Handbook of Transparent Conductors
Obvious accomplishing fabrics are key components in a large choice of present applied sciences together with flat panel screens, photovoltaics, natural, low-e home windows and electrochromics. the desires for brand spanking new and more suitable fabrics is urgent, as the latest fabrics should not have the functionality degrees to fulfill the ever- expanding call for, and since many of the present fabrics used will not be achievable sooner or later.
Monolithic Microwave built-in Circuit (MMIC) is an digital equipment that's accepted in all excessive frequency instant platforms. In constructing MMIC as a product, realizing research and layout concepts, modeling, size technique, and present developments are crucial. Advances in Monolithic Microwave built-in Circuits for instant structures: Modeling and layout applied sciences is a critical resource of information on MMIC improvement, containing examine on conception, layout, and useful ways to built-in circuit units.
- Encyclopedia of RF and Microwave Engineering, Volumes 1 - 6
- Microwave devices, circuits and subsystems for communications engineering
- Microwave Field-Effect Transistors: Theory, Design and Applications
- Plasma-based Radar Cross Section Reduction
Extra resources for Microwave Antennas
Example text
The dipole is located in the screened part. In the case of a continuous rod, the medium filling the volume V^ is a dielectric with e > t^, while in the case of a dielectric tube the medium is partially air with € = €Q, and partially dielectric with €> Other types of microwave antennas can also be represented in this manner. , the field in the volume V^ (Fig. , the field in the space V . Both fields are mutually coupled and this a coupling is expressed in the introduction of the above boundary conditions.
1 , 1 5 © ) represents an artificial dielectric composed of disks and is equivalent to a rod of circular cross-section of artificial dielectric, For surface-wave antennas, as for dielectric, the electro magnetic wave radiated by the exciter propagates in the form of a plane wave along the guide, These plane waves, guided by the grooves or dielectric surfaces as well as by rods of CUSSIFICATION, STRUCTURE AND OPERATING PRINCIPLES 55 36 MICROiTAVE ANTENNAS Pig. 1 . 1 7 . Circuit for excitation of cylindrical áurface-wave antenna using the aper ture of a circular waveguide.
As well as these, a condition at infinity is imposed on the FUNDAMENTAL PROBLEM AND METHODS FOR SOLUTION 41 required solution (the so-called radiation condition) which, in the final analysis, may he reduced to the requirement that at large distances f rom the system under consideration the field should have the character of spherical waves pro ceeding from the antenna. Rigorous solutions of certain problems in electrodynamics are currently known which may be applied in the theory of microwave antennas.