A V-band MMIC Self Oscillating Mixer Active Integrated Antenna Using a Push-Pull Patch Antenna

Choi, Wooyeol; Cheon, Changyul; Kwon, Youngwoo

doi:10.1109/mwsym.2006.249692

Cited by 11 publications

(4 citation statements)

References 9 publications

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“…The balanced configuration prevented injection locking between the RF and LO due to their isolation. In , a balanced SOM was integrated with a push‐pull patch antenna to efficiently suppress LO (58.46 GHz) radiation. The achieved conversion loss was 19 dB.…”

Section: Introductionmentioning

confidence: 98%

Self-oscillating mixer using six port power divider

Al-Zayed

Kourah

Mahmoud

2014

Int J RF and Microwave Comp Aid Eng

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A self-oscillating mixer (SOM) that uses a six port microstrip power divider is presented in this article. The oscillation and mixing functions are executed using a pair of identical GaAs field effect transistors. The power division and combination of the RF and local oscillator (LO) signals involved in the operation are implemented using the six port network. The RF input port of the proposed SOM is totally isolated from the operation of the LO which is a desirable feature in many applications. The proposed structure can work as a stand-alone oscillator with a frequency of 4.71 GHz and a power level of 16.1 dBm. When fed with a RF signal, the proposed structure becomes a fully functional SOM exhibiting a conversion gain of 5.2 dBm. The simulation and measurement results of the proposed SOM are presented to validate the design concept. V C 2014 Wiley Periodicals, Inc. Int J RF and Microwave CAE 25:269-276, 2015.

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Section: Introductionmentioning

confidence: 98%

Self-oscillating mixer using six port power divider

Al-Zayed

Kourah

Mahmoud

2014

Int J RF and Microwave Comp Aid Eng

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“…Later, PA output port matching is used to transform the antenna input impedance to the optimum impedance of the PA to achieve higher efficiency. Using this method a lot of advancements in the field of the AIA with superior characteristics have been proposed in [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24]. These AIAs provide good results at higher frequencies, but unable to achieve the compact size.…”

Section: Introductionmentioning

confidence: 99%

“…The antenna selection plays a major role in the AIA design for wide or reconfigurable characteristics. Generally, the microstrip patch antennas are used because of their ease of fabrication and integration [8][9][10][11][12][13][14][15][16]. Besides, the sector antennas [8][9][10], slots [13][14][15][16], log periodic [18], quasi-Yagi [19], monopole [20], circularly polarised antennas [13,21], differential feed [22] and UWB antennas [23,24] are proposed for AIA.…”

Section: Introductionmentioning

confidence: 99%

Compact planar active integrated inverted‐F antenna with frequency reconfigurable capability

Gundumalla

Agrawal

Parihar

2018

IET Microwaves, Antennas & Propagation

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This study presents two compact high‐efficiency active integrated antennas (AIAs) working at 2.15 GHz. Both AIAs are realised by integrating the planar inverted‐F antenna (PIFA) at the back side of the class‐E power amplifier. In the first design, the antenna input impedance is transformed into an optimum impedance of the power amplifier. It achieves the maximum power added efficiency (PAE) of 68.6% with a total dimension of 0.36λ0 × 0.32λ0 × 0.03λ0 (λ0 is calculated at 2.15 GHz). In the second design, the antenna directly connected to the drain terminal of the power amplifier and offers a maximum PAE of 74% with a compact size of 0.21λ0 × 0.17λ0 × 0.04λ0, results in the size reduction of 59%. The novelty of the second design is it offers frequency reconfigurable nature by moving the shorting plate of PIFA without scaling the power amplifier and antenna, which can support Universal Mobile Telecommunications System (UMTS) (1920–2170 MHz), long term evolution (LTE)‐40 (2300–2400), and Worldwide Interoperability for Microwave Access (WiMAX) (2500–2690 MHz) frequency bands. The measured results demonstrate that the proposed reconfigurable AIA yields the maximum PAE of 64% at both frequencies 2.3 and 2.6 GHz.

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“…Self-mixing active antennas are reported in [7][8][9] where active device non-linearity is used for frequency up/down conversion. Low noise active antennas are shown in [10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Miniaturised active integrated antennas: a co‐design approach

Sharawi¹,

Dhar

Hammi³

et al. 2016

IET Microwaves, Antennas & Propagation

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A co‐design methodology for antenna miniaturisation with an integrated radio frequency (RF) amplifier is proposed for power‐efficient and compact RF front‐ends. This approach relaxes the standalone antenna matching requirement which is of interest in miniaturised antenna design. The detailed design and measurement procedure is presented and the concept is demonstrated with two examples for both narrowband and wideband scenarios considering transmitting and receiving front‐ends. The amplifiers and the antennas are co‐designed so that optimum performance is achieved in terms of gain, noise figure and efficiency. The antenna has the size of 0.033λ02 at 2.45 GHz. It is miniaturised from its natural resonance frequency of 3.5–2.45 GHz which provides 51% of size reduction. The minimum bandwidth of the integrated antenna is found to be 37 and 150 MHz, respectively, for the narrowband and wideband designs. The active integrated antenna (AIA) efficiency is more than 47% when operating in the band of 2.45–2.6 GHz. The gain and noise figure of the AIA systems are optimised along with the antenna performance and found to be >10 dB and <2 dB, respectively. Measurement results are presented which are in well agreement with the design procedure and simulations.

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A V-band MMIC Self Oscillating Mixer Active Integrated Antenna Using a Push-Pull Patch Antenna

Cited by 11 publications

References 9 publications

Self-oscillating mixer using six port power divider

Self-oscillating mixer using six port power divider

Compact planar active integrated inverted‐F antenna with frequency reconfigurable capability

Miniaturised active integrated antennas: a co‐design approach

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