A 60-GHz Active Receiving Switched-Beam Antenna Array With Integrated Butler Matrix and GaAs Amplifiers

Patterson, Chad E.; Khan, Wasif Tanveer; Ponchak, George E.; May, G.S.; Papapolymerou, John

doi:10.1109/tmtt.2012.2213834

Cited by 72 publications

(32 citation statements)

References 22 publications

(17 reference statements)

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“…Ideally, the end result should be a good performing device that is easily integrated with other RF and electronic components. In this aspect, organically packaged RF front ends (system-on-package) have been successfully demonstrated at mm-wave frequencies [16,17].…”

Section: Introductionmentioning

confidence: 99%

Orientation study to minimise coupling effects in radiation patterns of dual‐packaged compact millimeter‐wave antennas

Lopez

Khan

Papapolymerou

2015

IET Microwaves, Antennas & Propagation

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This study presents a study of different antenna orientations to minimise coupling effects in the radiation patterns of two dipole arrays packaged together on multilayer organic (MLO) substrates. These effects are evident in the various ripples found in the pattern cuts of the arrays. The substrates used in the stack-up are Rogers' RO3003™ and ULTRALAM3850 ® . The two arrays, at 57 and 80 GHz, are fed together through a T-junction. The orientations studied consist of 0°, 45°and 90°. E-and H-plane patterns were measured for all orientations. Significant interference was seen in the E-plane for the 0°o rientation and H-plane for the 90°orientation. This was reduced in the 45°orientation, which yielded smoother patterns than its respective counterparts in 0°and 90°orientations. Adding 5 mm of extra distance in the configurations reduced either the amount of ripples (by 0.75 for 57 GHz and 1.75 for 80 GHz) or their average level (by 0.3 dBi for 57 GHz and 0.785 dBi for 80 GHz). The gain attained for the designs was >9 dBi and agreed well with simulated results. Guidelines for packaged antenna integration for mm-wave high speed communications based on the experiments are provided.

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Section: Introductionmentioning

confidence: 99%

Orientation study to minimise coupling effects in radiation patterns of dual‐packaged compact millimeter‐wave antennas

Lopez

Khan

Papapolymerou

2015

IET Microwaves, Antennas & Propagation

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“…However, the circuit size of conventional 4×4 Butler matrix is too large for mobile applications due to the requirement of four 90 o hybrids and two 45 o delay lines. As a result, it usually dominates the circuit size of a beamforming network [4] and it is more suitable for applications in the millimeter-wave regime.…”

Section: Introductionmentioning

confidence: 99%

Miniature 2.4-GHz switched beamformer module using the integrated passive device technology

Tseng

Lin

2014

The 8th European Conference on Antennas and Propagation (EuCAP 2014)

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In this work, a miniature switched beamformer module at 2.4 GHz is proposed using the glass-based integrated passive device (IPD) technology. With the proposed bridged-T coil based designs, the circuit size of both the 4×4 Butler matrix and the single-pole four-throw RF switch can be largely reduced. They are then integrated into a compact IPD chip size of only 4.7 mm×4.7 mm to achieve a miniature switched beamforming network for 2.4-GHz 4×1 antenna array application.Index Terms-Butler matrix, bridged-T coil, switched beamforming, integrated passive device, RF switch.I.

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“…Butler Matrix is a key building block in many array-based MIMO systems, since it is capable of forming multiple beams concurrently and enabling high system throughput [1] [2].…”

Section: Introductionmentioning

confidence: 99%

An ultra-broadband compact mm-wave butler matrix in CMOS for array-based MIMO systems

Park

Chi

Wang

2013

Proceedings of the IEEE 2013 Custom Integrated Circuits Conference

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This paper presents the design scheme of an ultra-broadband compact mm-wave Butler Matrix. The design employs new transformer-based swapped-port couplers and lumped LC-based π-network phase shifters to achieve an extremely compact chip size and ultra-broad bandwidth. This scheme is implemented as a 4×4 Butler Matrix in a standard 65nm CMOS technology with a core area of 0.335×0.215 mm 2 and a broad bandwidth of 9.8 GHz with the center frequency of 63 GHz. This Butler Matrix design also achieves small insertion loss of 2.77 dB and high-quality matching among the ports with less than 0.6 dB amplitude mismatch and less than 5° phase imbalance at 63 GHz. Based on the measured S-parameters, the four concurrent electrical array patterns of the Butler Matrix achieve its array peak-to-null ratio of better than 17dB between 57 GHz and 67 GHz.Index Terms -Butler Matrix, transformer-based swappedport quadrature coupler, beam-forming, CMOS integrated circuits, MIMO, phased-array.

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A 60-GHz Active Receiving Switched-Beam Antenna Array With Integrated Butler Matrix and GaAs Amplifiers

Cited by 72 publications

References 22 publications

Orientation study to minimise coupling effects in radiation patterns of dual‐packaged compact millimeter‐wave antennas

Orientation study to minimise coupling effects in radiation patterns of dual‐packaged compact millimeter‐wave antennas

Miniature 2.4-GHz switched beamformer module using the integrated passive device technology

An ultra-broadband compact mm-wave butler matrix in CMOS for array-based MIMO systems

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