A High-Efficiency Flat Plate Array for Direct Broadcast Satellite Applications

Sorbello, R.; Zaghloul, Amir I.; Effland, John; DiFonzo, D.

doi:10.1109/euma.1988.333831

Cited by 18 publications

(6 citation statements)

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“…Characteristics of printed wide-slot antennas fed by a microstrip line with a simple tuning stub have also been extensively studied [1]- [7] in which impedance characteristics [1], [2] and circularly polarized radiation characteristics [3]- [7] are reported. In this paper, we report the study of a new design of microstrip-line-fed printed wide-slot antennas with a fork-like tuning stub for bandwidth enhancement, and radiation characteristics of such a design are also investigated.…”

Section: Introductionmentioning

confidence: 99%

Bandwidth enhancement of a microstrip-line-fed printed wide-slot antenna

Sze

Wong

2001

IEEE Trans. Antennas Propagat.

442

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Section: Introductionmentioning

confidence: 99%

Bandwidth enhancement of a microstrip-line-fed printed wide-slot antenna

Sze

Wong

2001

IEEE Trans. Antennas Propagat.

442

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“…in com~arison w~th I& quarter-wavelength he&ht requ1;ed for a convent~onal sp& antenna back& by a Dlane reflector. It should also be noted that use of the foam-filled tri~late (ransm~ssion h e k u l t s in a printed array antenna which is light-weight and has low tkmnission line losses (James and Hall, 1989;Sorbello et al. 1988) Acmrdinn to the radiation mechanism of the smral slot in Section 2. a CPW is radiated when the sp~ral;lot supports a traveling-wave magn& current If a magnetlc cumnt can be made to mvel along the present pnnted sp~ral-slol, the pnnred antenna should also operate as a circularlv ~olirized-radiator.…”

Section: Spiral Slot Pnnted Awennamentioning

confidence: 98%

Monofilar Archimedean Spiral Slot Antennas

1994

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A monofilar Archimedean soiral is adooted as a circularlv oolarized slot radiator which is electromagneucally coupled'to a feed irk. Numerical &$IS of the coupl~ng between the slot and the feed h e reveals that, when the slot arm length is properly chosen, a travelrngwave magnetic cumnt is distributed along the slot. leading 6 t h e radiation of a circulariv planzed-wave On the basrs of tlus radlaion mechanrsm,a sprral slot pnnlcd antenna fed by a tnplate transmrsslon h e IS experimentally desrgned to o b u n a unrdrecuonal ramauon beam It is found that an axral raho of 0 6 dB is achevcd, and that the sprral slot is matched to the uansmrsslon lrne w~t h a VSWR of less than 1 5. An array antenna composed of 32 pnnted sprral slots IS m m t~c l e d , amnmg a 5 % bandwrdth for a 3-dB axral ran0 cnlenon ' Ibc f o n d o n of several tilted beams is a l k demonstrated.

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“…The obtained CP bandwidth (3-dB axial-ratio bandwidth), however, is usually narrow and less than 2%. When the same microwave substrate is used, corresponding printed slot antennas, especially wide slot antennas [14][15][16][17][18][19][20], usually have a much wider CP bandwidth than single-feed ones. The CP bandwidth of about 12% has been achieved for a microstrip line-fed square slot antenna [15], and it is also noted that most of the available circularly polarized wide slot antenna designs are with a microstrip line feed [14][15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

A Printed Dual-Band Dual-Sense Circularly Polarized Metal-Strip Antenna With Double Split-Ring Elements

Zhang¹,

Zhang²,

Yao³

et al. 2014

PIER C

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A novel and simple dual-band dual-sense circularly polarized (CP) metal-strip antenna is proposed. The antenna fed by a coplanar waveguide (CPW) with the advantages of uniplanar geometry and easier fabrication consists of a square slot and two split-ring elements. By appropriately introducing dual split-ring elements, the proposed dual-band CP design can easily be achieved. The two resonant frequencies are controlled by the size of the two split-ring elements. The proposed antenna prototype is fabricated and measured. Experimental results show that good CP radiation performances are obtained at both resonant frequencies. The proposed antenna has an impedance bandwidth (|S 11 | ≤ −10 dB) of 63.3% (2.0 ∼ 3.9 GHz), and the dual band circular polarization with left hand circular polarization (LHCP) at 2.2 GHz and the right hand circular polarization (RHCP) at 3.8 GHz are obtained. Also, the 3-dB axial ratio bandwidths are about 220 and 190 MHz at the lower and upper band, respectively.

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A High-Efficiency Flat Plate Array for Direct Broadcast Satellite Applications

Cited by 18 publications

References 0 publications

Bandwidth enhancement of a microstrip-line-fed printed wide-slot antenna

Bandwidth enhancement of a microstrip-line-fed printed wide-slot antenna

Monofilar Archimedean Spiral Slot Antennas

A Printed Dual-Band Dual-Sense Circularly Polarized Metal-Strip Antenna With Double Split-Ring Elements

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