A dual frequency microstrip patch antenna for high-precision GPS applications

Boccia,; Amendola,; Massa, G. Di

doi:10.1109/lawp.2004.832127

Cited by 91 publications

(46 citation statements)

References 7 publications

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“…It has also been shown that the antenna pattern of the SAP antenna can be shaped by the selection of the ring's outer radius. This is accomplished while maintaining the desired resonant frequency that is associated with the ratio of the outer radius to the inner radius [6]. The outer radius is typically designed to suppress surface waves, which limits the range of gain pattern shaping.…”

Section: Shorted Annular Patch With Horizon Nullmentioning

confidence: 99%

A Horizon Ring Nulling Shorted Annular Patch Antenna With Shunted Stubs

McMichael¹,

Lundberg²,

Hanna³

et al. 2017

PIER M

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Abstract-A dual-band shorted annular ring patch antenna with interference rejection at the horizon is presented for GPS timing applications. It is shown that the dimensions of the annular ring can be optimized to make a null in the RHCP pattern at low elevation near the horizon for all azimuth angles. This null attenuates interfering signals originating from ground based sources. The antenna achieves circular polarization utilizing radial shunted stubs. The effect of the stubs on the resonance is analytically derived and verified through simulations. A novel feed configuration that incorporates a coplanar waveguide transition improves the impedance match for both L1 and L2 GPS frequency bands compared to previous designs that present compromises between the feed impedance of the two bands. Additionally, since the shunted stubs reduce the number of required electronic components compared to other antennas with similar horizon nulling capability, the cost is reduced. A prototype antenna operating at GPS L1 and L2 bands has been fabricated and validated through measurements.

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Section: Shorted Annular Patch With Horizon Nullmentioning

confidence: 99%

A Horizon Ring Nulling Shorted Annular Patch Antenna With Shunted Stubs

McMichael¹,

Lundberg²,

Hanna³

et al. 2017

PIER M

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show abstract

“…In [13,14], single-band (L 1 ) GPS antennas based on the RSW concept were designed and shown to provide comparable multipath performance to the choke ring and pinwheel antennas. While a dual-band GPS antenna operating at the L 1 (1575 MHz) and L 2 (1227 MHz) frequencies has been designed by L. Boccia et al using stacked SAR patches [15] and L. I. Basilio et al combining a SAR patch an a ISAR patch [16]. In this paper, the focus is to broaden the bandwidth of the SAR and ISAR antennas and realize a low-cost dual-wideband active GNSS antenna with low-angle multipath mitigation for vehicle applications, which is compatible with GPS, GLONASS, Galileo and Compass systems.…”

Section: Introductionmentioning

confidence: 99%

A Low-Cost Dual-Wideband Active GNSS Antenna With Low-Angle Multipath Mitigation for Vehicle Applications

Wang¹,

Li²,

Fang³

et al. 2014

PIER

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Abstract-A low-cost dual-wideband active global navigation satellite system (GNSS) antenna is proposed for vehicle applications. An inverted shorted annular ring (ISAR) and a shorted annular ring (SAR) are used as radiation patches for low-angle multipath mitigation and operated respectively at 1164-1279 MHz and 1559-1610 MHz. To reduce the effect of the mutual coupling between the ISAR and SAR, meanwhile broaden the impedance bandwidth of the ISAR, defected ground structures are etched under the microstrip feed lines of the ISAR. Two trans-directional couplers are adopted to form orthogonal dual-feed networks of the ISAR and SAR for wideband circularly polarized reception. A combiner is adopted to merge two way signals into one way amplified by a wideband low noise amplifier with the proposed DC and RF collinear transmission technology. The experimental results show that the proposed antenna is better than the NovAtel GPS-703-GGG pinwheel antenna in terms of signal reception.

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“…Moreover, a dual-frequency performance is also required for several of these applications; see for instance [21]. Previous works to achieve dual frequency CP [21][22][23][24][25][26][27][28] have been based on adding different kinds of parasitic elements (stacked patches, slots, etc). However, the stacked approach is multi-layered [21,22].…”

Section: Introductionmentioning

confidence: 99%

“…Previous works to achieve dual frequency CP [21][22][23][24][25][26][27][28] have been based on adding different kinds of parasitic elements (stacked patches, slots, etc). However, the stacked approach is multi-layered [21,22]. On the other hand, the single-layer approaches are only valid for large (> 1.7) [23-25] or small ratios (< 1.3) [26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Quad-Frequency Linearly-Polarized and Dual-Frequency Circularly-Polarized Microstrip Patch Antennas With CRLH Loading

Segovia-Vargas¹,

Herráiz-Martínez²,

Ugarte-Munoz³

et al. 2013

PIER

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Abstract-In this paper, a novel technique to develop multifrequency microstrip patch antennas with polarization diversity or circular polarization is presented. The proposed approach consists of exciting modes with orthogonal polarizations in microstrip patches partially filled with Composite Right/Left-Handed (CRLH) cells. Two different kinds of quad-frequency single-layer patch antennas are proposed. The first one has two orthogonal ports with high isolation between them. The second kind of quad-frequency patch antennas consists of exciting the four modes with two orthogonal polarizations through only one port. Finally, the proposed approach is used to develop dual-frequency circularly-polarized (CP) patch antennas by exciting the modes with orthogonal polarizations in quadrature phase. Prototypes of all the designs are manufactured and measured, showing good performance.

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A dual frequency microstrip patch antenna for high-precision GPS applications

Cited by 91 publications

References 7 publications

A Horizon Ring Nulling Shorted Annular Patch Antenna With Shunted Stubs

A Horizon Ring Nulling Shorted Annular Patch Antenna With Shunted Stubs

A Low-Cost Dual-Wideband Active GNSS Antenna With Low-Angle Multipath Mitigation for Vehicle Applications

Quad-Frequency Linearly-Polarized and Dual-Frequency Circularly-Polarized Microstrip Patch Antennas With CRLH Loading

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