A new compact ultra-wideband balun for printed balanced antennas

Lin, Shanming; Wang, Jianpeng; Deng, Yijing; Zhang, Gang

doi:10.1080/09205071.2015.1051191

Cited by 12 publications

(4 citation statements)

References 14 publications

(19 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is evident from above discussions that the performance (amplitude and phase balances) of the balanced feeding network defines the achievable SIC levels for presented antenna structure. In this work, a modified version of a differential circuit (balun) reported in [38] has been used for balanced excitation of presented antenna. Two such symmetrical baluns have been used for balanced excitation of T x and R x modes.…”

Section: Architecture Of Proposed Co-cp Antenna Array With Passive Si...mentioning

confidence: 99%

Co-Circularly Polarized Planar Antenna With Highly Decoupled Ports for S-Band Full Duplex Applications

et al. 2022

View full text Add to dashboard Cite

This work presents a unidirectional, co-circularly polarized (CP), printed antenna with highly decoupled or isolated transmit (T x ) and receive (R x ) ports for 2.4 GHz in-band full duplex (IBFD) applications. The presented antenna topology is based on four similar and sequentially rotated trimmed patches with right hand circular polarized (RHCP) characteristics. The symmetrical placement of two T x patches with respect to both R x elements results in equal levels of self interference (SI) which was suppressed through balanced excitation of T x mode. This mechanism results in effective suppression of SI at each R x patch. The residual SI is suppressed further through a second balanced feeding network deployed at R x port of proposed antenna topology. The employed balanced feeding networks provide superior performance of ≤ 0.5 dB and 6° magnitude and phase imbalances respectively between the two balanced output ports over the bandwidth of interest. The measured results for prototype of presented antenna achieve -10 dB bandwidth of better than 100 MHz for both T x and R x ports. The measured interport coupling for validation model ≤ -70 dB across the entire bandwidth of 100 MHz. As per best of authors' knowledge, the presented antenna is the first one to report such reduced levels of interport coupling over the whole impedance bandwidth of planar antenna with unidirectional radiation patterns and co-RHCP characteristics for both T x and R x modes across the overlapped bandwidth.INDEX TERMS Circularly polarized antenna, unidirectional radiation pattern, reduced interport coupling, self interference suppression, balanced feeding network.

show abstract

Section: Architecture Of Proposed Co-cp Antenna Array With Passive Si...mentioning

confidence: 99%

Co-Circularly Polarized Planar Antenna With Highly Decoupled Ports for S-Band Full Duplex Applications

et al. 2022

View full text Add to dashboard Cite

show abstract

“…In [21], a conventional Vivaldi antenna is fed by a balun consisting of two different forms of transition structures. The first transition is realized by connecting the microstrip line to the slot line through short-ended via and the second transition is achieved by introducing electromagnetic coupling between the slot line and the output microstrip line.…”

Section: Feeding Mechanism Of Vivaldi Antennasmentioning

confidence: 99%

Vivaldi antennas: a historical review and current state of art

Bhattacharjee

Bhawal

Karmakar

et al. 2020

Int. J. Microw. Wireless Technol.

View full text Add to dashboard Cite

The progressions in the field of wireless technology can be highly attributed to the development of antennas, which can access high data rates, provide significant gain and uniform radiation characteristics. One such antenna called the Vivaldi antenna has attracted the utmost attention of the researchers owing to its high gain, wide bandwidth, low cross-polarization, and stable radiation characteristics. Over the years, different procedures have been proposed by several researchers to improve the performance of the Vivaldi antennas. Some of these different approaches are feeding mechanisms, integration of slots, dielectric substrate selection, and radiator shape. Correspondingly, the performance of a Vivaldi antenna can be increased by including dielectric lens, parasitic patch in between two radiators, corrugations, as well as metamaterials. This paper gives a systematic identification, location, and analysis of a large number of performance enhancement methods of Vivaldi antenna design depicting their concepts, advantages, drawbacks, and applications. The principal emphasis of this article is to offer an outline of the developments in the design of Vivaldi antennas over the last few years, where the most important offerings, mostly from IEEE publications, have been emphasized. This review work aims to reveal a promising path to antenna researchers for its advancement using Vivaldi antennas.

show abstract

“…In Fact, a Balun is demanded to measure the differentially-fed antenna array. So a wideband balun, proposed in [13], from 3.6 to 10.7 GHz with a good balanced performance within 0.5 dB magnitude imbalance and less than 6 • phase imbalance was used in the testing process. The test results of radiation patterns of normally-fed and differentially-fed U-slot patch antenna arrays in the H-plane are compared in Fig.…”

Section: Design Of Wideband Differentially-fed U-slot Patch Antenna Amentioning

confidence: 99%

A Broadband Low Cross-Polarization U-Slot Patch Antenna Array Based on Differential Feed

Zhu¹,

Chen²,

Chen³

et al. 2016

PIER C

View full text Add to dashboard Cite

Abstract-In this paper, a single layer 4 × 4 U-slot patch antenna array based on differential feed was developed to achieve a wide bandwidth and low cross polarization with a simple feed network. A U-slot was cut on a radiation patch to realize a wideband performance, and a microstrip-line fed structure was adopted to make the patch and feed network placed in a single layer. In order to reduce extra crosspolarization level in the H-plane caused by cutting U-slot, differential feed is adopted, which also makes it easily integrated with differential devices (such as differential amplifier) directly without baluns. A single layer U-slot patch array based on differential feed and an array having the same structure but based on normal feed were made and compared with each other. The designed differentially-fed patch array has more than 12% measured impedance bandwidth and stable gain at 18-19 dBi across the operating band from 5.2 to 5.88 GHz. The measured result shows that a better asymmetry of radiation pattern in the E-plane and a lower than −45 dB cross-polarization level in the H-plane can be achieved compared with normally-fed array.

show abstract

A new compact ultra-wideband balun for printed balanced antennas

Cited by 12 publications

References 14 publications

Co-Circularly Polarized Planar Antenna With Highly Decoupled Ports for S-Band Full Duplex Applications

Co-Circularly Polarized Planar Antenna With Highly Decoupled Ports for S-Band Full Duplex Applications

Vivaldi antennas: a historical review and current state of art

A Broadband Low Cross-Polarization U-Slot Patch Antenna Array Based on Differential Feed

Contact Info

Product

Resources

About