US3210766A - Slot type antenna with tuning circuit - Google… Slot type antenna with tuning circuit Download PDF US4839663A - Dual polarized slot-dipole radiating element… Two contiguous half-height waveguides (12, 14) having a common broad wall (16) are provided with a pair of closely spaced equal length slots (20) and a single unbalanced-fed half-wave dipole (24) located parallel to and between the slots … US3524192A - Scanning apparatus for antenna arrays - Google…
A BROADBAND VHF-L BAND CAVITY-BACKED SLOT SPIRAL ANTENNA
A Compact Dual-Element Uniplanar Antenna for Portable Broadband ... Feb 2, 2018 ... Broadband MIMO Systems ... An annular slot antenna with the frequency range of 3-12GHz was proposed for pattern diversity operation [17]. Low-Profile Omnidirectional Antenna with Dual Polarizations for 2.4 ... Dec 30, 2016 ... Vertical polarization is obtained by a modified annular ring slot ... Measured reflection coefficients, isolation, and radiation patterns data agree ... Adopting polarization diversity, dual-polarized antennas are .... It is connected to the feeding network of the arc dipole array which is comprised of six broadband. UWB MIMO Slot Antenna with Minkowski Fractal Shaped Isolators for ...
A Compact UWB and Bluetooth Slot Antenna for MIMO/Diversity ...
The annular ring slot antenna can be useful for the implementation of a pattern/polarization receiving diversity scheme in on-body and off-body communication systems. Diversity gain measurements in both an anechoic chamber and an actual indoor environment are being performed, for different body positions and typical body movements, as already Dual-Band Microstrip Patch Antenna for Wireless Applications Keywords: Microstrip, dual-band, wireless, wide-band, slot-loaded Abstract A small wideband microstrip patch antenna is introduced. The antenna is designed to function in the 5-6 GHz wireless LAN bands. It achieves multi-band functionality through the addition of a slot … Annular Slot Loaded High-Impedance Ground Plane - …
Dual-band-notched antenna for UWB MIMO applications
Dual-frequency Dual-sense Circularly-polarized Slot Antenna Fed by ... Jan 1, 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 ...
Keywords: broadband antenna, pattern diversity antenna, slot antenna and ultra wide band (UWB) antenna. Abstract-In this paper a broadband four ports MIMO antenna with pattern diversity …
Gain enhancement of annular slot antennas | Request PDF The gain enhancement of an annular slot antenna fed by a cavity is studied numerically. The method of moments for bodies of revolution is used as a numerical tool for the simulations. UWB MIMO Antenna with Band-Notched Characteristic ... — A multiple-input-multiple-output (MIMO) band-notched antenna with a compact size of only 22 × 36 mm 2 is proposed for ultra wideband (UWB) applications. The antenna consists of two square monopole-antenna elements, a T-shaped ground stub, a A Broadband Pattern Diversity Annular Slot Antenna Title: A Broadband Pattern Diversity Annular Slot Antenna: Authors: Gallo, Michele; Antonino-Daviu, Eva; Ferrando-Bataller, Miguel; Bozzetti, Michele; Molina-Garcia ... Trident-shape strip loaded dual band-notched UWB MIMO ...
annular slot antenna proposed in [23] provides dual-band feature with two concentric slot-rings and stable radiation pattern in both bands, but the dimensions of the cavity were too large, hence resulting in a bulky structure unsuitable for array design. In this paper, a compact dual-feed dual-band slot antenna is described. It has been ... Dual Port Ultra Wideband Antennas for Cognitive Radio and ...