A COMPACT LINEAR TAPERED SLOT ANTENNA WITH … 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 A PRINTED CIRCUIT FOLDED DIPOLE WITH INTEGRATED … 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 ... High-power ultra-wideband spiral antenna arrays - IEEE … Jan 11, 2014 · The four-arm spiral antenna configuration is considered to ensure a good frequency-domain performance of the good time-domain spiral (i.e. loosely-wrapped spiral). Finally, the four-arm spiral's beamformer complexity is addressed by the development of a dual microstrip feed which acts not only as an integrated balun (infinite Dyson balun), but Flexible Spiral Antenna with Microstrip Tapered Infinite Balun …
A new planar feed for slot spiral antennas
The antenna and Dyson-style balun have been integrated into a multi-layer ... Kiang, "Broadband slot spiral antenna with external feed and microstrip-to- slotline ... Stripline-based spiral antennas with integrated feed structure ... The spiral antenna uses the finite grounds of the stripline feed network ... match a spiral antenna by tailoring its spiral constant K (related to slot-to-metal ratio) to ... with integrated feed structure, impedance transformer, and dyson-style balun. 2. A Broadband VHF-L Band Cavity-Backed Slot Spiral Antenna - DTIC Cross section of slot spiral showing how the microstrip balun excites the ..... L. Volakis,Slot Spiral Antenna with Integrated Balun and Feed,U.S. patent no ... Extremely Broadband Slot Spiral Antenna with Shallow Reflecting ... ation over extremely broad bandwidths. The design and integration of a planar infinite balun/feed structure and very shallow reflecting cavity is presented and ...
(PDF) Microstrip to Parallel Strip Balun as Spiral Antenna Feed
[0011] A slot spiral antenna with an integrated planar balun and feed is described in U.S. Pat. No. 5,815,122 to Nurnberger, et al. The slot spiral antenna is produced by using standard printed circuit techniques. A conducting layer of the material substrate is etched to form a radiating spiral slot. A Spiral Antenna with Integrated Parallel-Plane Feeding Structure 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.
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
Visio-Multi-Band HF Antennas Part 3 Multi-band HF Antennas Part 3– VA3TPV April 2012 iss 1 One final OCF dipole, Figure 5, this time for the 6, 10, 20, and 40 meter bands, is by Rick Littlefield, K1BQT, and was presented in QST, June 2008. What is different about this version is the inclusion of the 6 meter band and a return to the 1/3 feed point ratio. spiral microstrip antenna: Topics by WorldWideScience.org
Low-profile, Ultra Wideband and Dual Polarized ... - Pastel Theses
A Spiral Antenna with Integrated Parallel-Plane Feeding 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
A slot spiral (18) antenna with a planar integrated balun and feed. The slot spiral is produced using standard printed circuit techniques and comprises a dielectric substrate having a conductive layer which is etched to form the radiating slot spiral. An integrated microstrip feed (16) is included to provide a balanced feed to the slot spiral. US Patent for Slot spiral antenna with integrated balun ... A slot spiral antenna with a planar integrated balun and feed. The slot spiral is produced using standard printed circuit techniques and comprises a dielectric substrate having a conductive layer which is etched to form the radiating slot spiral. An integrated microstrip feed is included to provide a balanced feed to the slot spiral. Impedance matching is performed between the microstrip feed ... A New Planar Feed for Slot Spiral Antennas - ResearchGate A New Planar Feed for Slot Spiral Antennas. ... We have previously demonstrated the importance of an integrated planar balun and feed for realizing the spiral's bandwidth potential. Of equal ...