Slot spiral antenna with integrated balun and feed

By Guest

has been successfully used as a balun applied to feed the antenna [22,25]. Designing a small balun with wideband performance is still a challenging issue. In this paper, a UWB antenna is proposed and fabricated. This antenna consists of an integrated balun and a linear tapered slot antenna. The integrated balun based on a microstrip to slotline

requirements of the low proﬂle spiral antenna geometry. A spiral antenna with integrated parallel-plane feeding structure is proposed in this paper. The antenna used has obviously improved axial ratio compared to the equiangular spiral antenna at low frequencies. And the traditional balun in the third dimension is moved to the planar plane. A PRINTED CIRCUIT FOLDED DIPOLE WITH INTEGRATED BALUN WITH INTEGRATED BALUN Paul M. Proudfoot, 1/Lt, USAF APPROVED FOR PUBLIC RELEASE; DISTRIBUTION UNLIMITED. ... 3.J. (1960) A printed circuit balun for use with spiral antennas, IRE Trans. on Microwave Theory Tech. MNITT-8:319-325. 3. CD z I' a tA z.In Figure 2. Folded Dipole with Integrated Balun ... ab (that is. the open-end length and slot ... Flexible Spiral Antenna with Microstrip Tapered Infinite ... solution for antenna systems using spiral antennas. The infinite balun used in many papers for spiral (slot) antennas basically consists of a coaxial cable spiraled along the antenna arms with the coaxial shield soldered to the antenna arm. At the center, the coaxial pin connects to the other antenna arm. This balun construction only provides ... High-power ultra-wideband spiral antenna arrays - IEEE ...

14 Aug 2014 ... However, the inﬁnite balun feeding technique. is somewhat .... Realized planar single-port vertical feed 4-arm slot spiral antenna with. short arm ...

Patents and Disclosures | John L. Volakis - u.osu.edu Ersin Yetisir, Chi-Chih Chen & John L. Volakis, Highly Isolated Multi-Antenna System for Indoor Mobile Communications, OSU Disclosure, U.S. Provisional Patent in progress. Elias Alwan, S. Balasubramanian, W. Khalil, K. Sertel & J.L. Volakis, Ultra wideband digital beamformer with local encoding for reduced analog to digital converters, U.S ... Patents and Disclosures - John L. Volakis J. Zhao, C-C. Chen and J.L. Volakis, Ultrawide Bandwidth Inverted-Hat Monopole Antenna with Multiple Elliptical Curvatures,” 2008, Disclosure OSU ID #09061S; C.-C. Chen, J.L. Volakis and Y. Zhou, Compact GPS Antenna Element and Array with a Single Feed, patent disclosure, 2007

Mounted cylindrical dipole with a quarter-wave balun feed ... The inclusion of an integrated balun in the Antenna Magus design and exported ... The Cavity backed T-bar-fed slot is a rugged, medium band, medium gain antenna that is ... of the Cavity-backed Archimedean spiral antenna and is intended to be used where a ...

Compact Coplanar Waveguide Spiral Antenna With Circular ... polarized, coplanar waveguide (CPW) spiral antenna for wideband applications. The antenna ... This feed provides the capability to have an entire uniplanar array of spirals. ... of designing antennas for integrated system applications. Spiral antennas ... not 50 , and thus a wideband balun for impedance matching is required. Conformal Load-Bearing Spiral Antenna on Conductive Textile ... - CDN spiral was fabricated with an integrated microstrip planar textile balun as in[11], and placed upon a polydimethylsiloxane. (PDMS) flexible substrate. However ... Multiple Band Monopole Arm Microstrip Spiral Antenna for Cognitive ... matching thereby avoiding the need of balun for spiral antenna. ... integrate with other electronic components. Spiral antennas being the broad band ... rectangular, conical, logarithmic, slot spiral are being ... balun design to feed the antenna. Sensors | Free Full-Text | Study on Miniaturized UHF Antennas for ...

In this paper we introduce a flexible, side-fed, ultra-wideband, spiral antenna with an integrated microstrip tapered infinite balun operating from 1-5GHz. It was fabricated using Rogers 5880 subtrate and specially coated to prevent oxidization.

spiral was fabricated with an integrated microstrip planar textile balun as in[11], and placed upon a polydimethylsiloxane. (PDMS) flexible substrate. However ...