A dual‐band antenna design for GPS and UMTS applications

Sim, Chow‐Yen‐Desmond; Row, Jeen‐Sheen; Chen, Shing-Hau

doi:10.1002/mop.22597

Cited by 11 publications

(6 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For modern wireless products, an integrated antenna that can simultaneously support satellite positioning systems and terrestrial mobile communication systems is required. Due to the requirements, several designs related to microstrip antennas with different radiation patterns have been reported . Most of the past designs are based on the concept of using different resonant modes.…”

Section: Introductionmentioning

confidence: 99%

“…A two‐element coplanar structure was also adopted to obtain different radiation patterns at two operation bands. In , a top‐loaded monopole antenna is integrated into the inner slot of a truncated square‐ring patch antenna, and the integrated antenna can radiate a LP conical pattern at the UMTS band and a CP broadside pattern at the GPS band. A similar design was reported in , where the LP conical pattern is generated from a ring patch antenna resonant at the TM 21 mode.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Dual‐band circularly polarized microstrip antenna

Yang

Row

2016

Micro & Optical Tech Letters

Self Cite

View full text Add to dashboard Cite

A design for dual‐band circularly polarized microstrip antennas with different radiation patterns is described. The design is based on a stacked patch antenna composed of an upper circular patch and a lower ring patch. For the higher operation band, the two patches are simultaneously resonant at the TM21 mode and the stacked patch antenna can produce a conical radiation pattern. As for the lower operation band, only the upper patch is resonant at its fundamental mode and a broadside radiation pattern is obtained. To allow the two radiation patterns to be with circular polarization, 90° hybrid couplers are used to excite the patch antennas at the two operation bands. A prototype designed at the GPS and WLAN bands is constructed. The experimental results demonstrate that the prototype operated at each frequency band has a 3dB‐axial‐ratio bandwidth of more than 15%. Simulation performed with HFSS also validates the measured results. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:404–408, 2017

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dual‐band circularly polarized microstrip antenna

Yang

Row

2016

Micro & Optical Tech Letters

Self Cite

View full text Add to dashboard Cite

show abstract

“…In principle, the antennas for CP wave have to excite two perpendicular electric fields with equal magnitudes. Many types of antennas, such as loop [5,6], fractal [7], slot [8,9], and patch [10][11][12] for CP applications have been proposed previously. In [5], an L-shaped slot is embedded in the ground plane for CP characteristics and improving its impedance.…”

Section: Introductionmentioning

confidence: 99%

“…In [10], CP operation is obtained by selecting an optimal size of the truncated corners. To produce broadside right-hand CP radiation in [11], the square-ring patch is with truncated corners of equal side length. In [12], the patch have four slots at the edges and a cross slot at the center to carry out the CP patterns.…”

Section: Introductionmentioning

confidence: 99%

A Corner-Fed Square Ring Antenna With an L-Shaped Slot on Ground Plane for GPS Application

Lee

Chen²,

Su³

et al. 2013

PIER C

View full text Add to dashboard Cite

Abstract-This paper proposes a square ring patch antenna for GPS L 1 band application. The square ring patch located on the center of an FR4 substrate was truncated a square to guide two resonant modes. The dimensions of the truncated square located on the center of the patch controls the antenna's frequency band. Larger truncated square creates longer resonant path that decreases the resonant band. To achieve the CP radiation patterns, the corner-fed method and a truncated L-shaped slot on the ground plane are applied. After the size of the truncated L-shaped slot is optimized, the currents of E θ and E ϕ are around 90 • shifts that make the antenna's AR lower than 3 dB. By switching the positions of the feed point and the L-shaped slot, both RHCP and LHCP can be obtained individually. Beside the CP operation, the proposed design also has advantages of planar structure, simple design, low cost, and good performances.

show abstract

“…The antenna must have a single feed so that it can be used for either of the above applications. The required return loss at each frequency is 15db [5][6][7][8]. Initially a design graph is used to determine the dimensions of the antenna.…”

Section: Introductionmentioning

confidence: 99%

Design of a three port feed matching network for a dual-band and dual-polarized rectangular patch antenna

Nimbark¹,

Korolkiewicz

et al. 2012

2012 International Conference on Signal Processing and Communications (SPCOM)

View full text Add to dashboard Cite

Abstract-This paper presents practical design of a three port feed network for a dual-band and dualpolarized patch antenna operating at 1.9 GHZ and 2.4 GHz. Initially, design graphs are used to determine the dimensions of the patch for dual band application and the component values of the two equivalent parallel tuned circuits of the antenna at each frequency. Finally the predicted and practical results are compared.Index Terms--Transmission lines, Microstrip lines, patch antenna, three port network, dual frequency matching, microwave software,

show abstract

A dual‐band antenna design for GPS and UMTS applications

Cited by 11 publications

References 5 publications

Dual‐band circularly polarized microstrip antenna

Dual‐band circularly polarized microstrip antenna

A Corner-Fed Square Ring Antenna With an L-Shaped Slot on Ground Plane for GPS Application

Design of a three port feed matching network for a dual-band and dual-polarized rectangular patch antenna

Contact Info

Product

Resources

About