US8941541B2 - Multilevel antennae - Google Patents An apparatus includes an antenna concealed within a portable communication device and configured to operate in non-overlapping frequency bands. The antenna includes an antenna element with a multilevel structure of geometric elements … US3902177A - Antenna for direction finders - Google Patents This invention relates to an antenna for direction finders presenting a high sensitivity in a narrow band by making a loop antenna and a shielding tube resonate at any two desired frequencies. US2471021A - Radio wave guide - Google Patents This antenna structure comprising essentially a stacked biconical horn array is commonly utilized to develop a field distribution having a uniform circular horizontal pattern. Radioengineering - April 2018, Volume 27, Number 1 [DOI: 10…
Beamforming Antenna Array Combining Pattern and... |…
IEEE Transactions on antennas and propagation a public A Compact Yagi-Uda Type Pattern Diversity Antenna Driven by CPW-Fed Pseudomonopole.Design of Broadband Dual-Polarized Patch Antenna With Backed Square Annular Cavity.A Substrate Integrated Slot Antenna Array Using Simplified Feeding Network Based on Higher Order... Broadband Microstrip Antennas Broadband Microstrip Antennas. Girish Kumar K. P. Ray. Artech House Boston • London www.artechhouse.com.CMSAs Resonance Frequency Input Impedance and Voltage Distribution Radiation Pattern Effect of Loss Tangent Broadband CMSAs Analysis of Higher Order Modes... Slot Antennas A broadband cavity-backed antenna can be realized by using a T-bar feed,17 as shown in Figure 8-7.The radiation characteristics of any annular slot (cut in an infinite ground screen) are identical with those ofSlot Antennas SLOT ANTENNAS. 8-11. FIGURE 8-13 Roll-plane pattern of annular-slot...
PIER C : Progress In Electromagnetics Research C He, "Closely-packed UWB MIMO/diversity antenna with diggerent patterns and polarizations for USB dongle applications," IEEE Transactions on ... M. Bozzetti, J. M. Molina-Garcia-Pardo, and L. Juan-Llacer, "A broadband pattern diversity annular slot antenna," IEEE Transactions on Antennas and ...
1 Jan 2008 ... mances, particularly for broadband and circular-polarization ap- plications. ... multiple slots. In this paper, the single layer annular slot antenna is used .... Measured radiation patterns at 1.5 GHz for the proposed antenna. 92 MHz ... switchable slots for circular polarization diversity,” IEEE Microw. Wireless ... ANTENNA MAGUS - NEWS | The leading Antenna Design Software ... For example, users are now able to import and use 3D radiation pattern data to represent array ... Wire monopole with annular-slot antenna for WLAN composed of quasi-omnidirectional radiators. This allows for pattern diversity capabilities. ... The requirement for a broadband elliptically-polarised antenna which can be ... Polarization Reconfigurable Slot Antenna With a Novel Compact CPW ...
A pattern reconfigurable annular slot antenna that can switch beams in numerous directions has been designed and tested using Ansys HFSS. By controlling pin diodes, the beam direction of the antenna can be switched accordingly. The design is working at low frequency with limited bandwidth and has a...
It is printed on an FR4 substrate with relative permittivity 4.4 and a thickness 0.8 mm. The UWB open L-shaped slot antenna proposed in [15] is used as reference, and the antenna’s dimensions are optimized to get a smaller size. The proposed MIMO antenna consists of two L-shaped slot antenna elements, denoted as LS 1 and LS 2. TANGENTIALLY FED BROADBAND ANNULAR SLOT ANTENNA FOR WLAN ... TANGENTIALLY FED BROADBAND ANNULAR SLOT ANTENNA FOR WLAN APPLICATIONS Philippe Minard, Ali Louzir THOMSON multimedia, Corporate Research 1 Avenue Belle-Fontaine, BP 19, 35511 Cesson-Sévigné Cedex – France A Compact Annular Ring Microstrip Antenna for WSN Applications A compact annular ring microstrip antenna was proposed for a wireless sensor network (WSN) application in the 2.4 GHz band. In this paper the major considerations of the conformal antenna design were the compact size and the impact on antenna's performance of a steel installation base. Compact ACS-fed UWB antenna for diversity applications
A microwave communication antenna consists of a laminated structure having an r.f. radiating conductor affixed on the top side thereof and a feed coupling network within. The r.f.
ultra wideband (UWB) pattern diversity antenna for MIMO applications with dual band-notchedHowever, compact UWB diversity antenna with band-notched characteristics has seldom beenTwo split-ring resonator (SRR) slots on each radiating element are etched to generate notched bands for... BADSA - Broadband Annular Dual-Slot Antenna |…
Figure 8: E plane radiation patterns of annular slots when n=1 and Ws<<λο [4] ..... The need of wide operation diversity forces wireless communications ..... antenna becomes a broadband antenna since the S11 parameter between the two. Recent Developments of Reconfigurable Antennas for Current ... - MDPI Jan 26, 2019 ... polarization diversity, which can reduce the size, complexity, and cost of an ..... of a slot antenna with frequency and pattern reconfigurable ... diode states, the antenna can operate at the frequency bands of wireless broadband (Wibro), WLAN, .... plastic screws to support the substrates, with an annular slot ... A Compact UWB and Bluetooth Slot Antenna for MIMO/Diversity ...