US 9,812,753 B2 | ||
Radiofrequency and other electronic devices formed from enhanced resonant frequency hexaferrite materials | ||
Michael D. Hill, Frederick, MD (US) | ||
Assigned to Skyworks Solutions, Inc., Woburn, MA (US) | ||
Filed by SKYWORKS SOLUTIONS, INC., Woburn, MA (US) | ||
Filed on Jun. 24, 2013, as Appl. No. 13/925,142. | ||
Application 13/925,142 is a division of application No. 13/314,106, filed on Dec. 7, 2011, granted, now 8,609,062. | ||
Claims priority of provisional application 61/420,625, filed on Dec. 7, 2010. | ||
Claims priority of provisional application 61/435,608, filed on Jan. 24, 2011. | ||
Prior Publication US 2013/0285874 A1, Oct. 31, 2013 | ||
Int. Cl. H01B 1/08 (2006.01); H04B 1/00 (2006.01); H01P 1/00 (2006.01); H01P 1/397 (2006.01); H04B 1/38 (2015.01); C04B 35/64 (2006.01); H01Q 1/50 (2006.01); C04B 35/26 (2006.01); C04B 35/624 (2006.01); C04B 35/626 (2006.01); H01F 1/34 (2006.01); C01G 49/00 (2006.01); C01G 51/00 (2006.01) |
CPC H01P 1/397 (2013.01) [C01G 49/0036 (2013.01); C01G 51/40 (2013.01); C04B 35/26 (2013.01); C04B 35/624 (2013.01); C04B 35/6261 (2013.01); C04B 35/62625 (2013.01); C04B 35/64 (2013.01); H01B 1/08 (2013.01); H01F 1/348 (2013.01); H01Q 1/50 (2013.01); H04B 1/38 (2013.01); C01P 2004/61 (2013.01); C01P 2006/12 (2013.01); C04B 2235/3201 (2013.01); C04B 2235/3215 (2013.01); C04B 2235/3275 (2013.01); C04B 2235/3277 (2013.01); C04B 2235/5445 (2013.01); C04B 2235/604 (2013.01); C04B 2235/6021 (2013.01); C04B 2235/6562 (2013.01); C04B 2235/6565 (2013.01); C04B 2235/6567 (2013.01); C04B 2235/767 (2013.01)] | 20 Claims |
1. A radio-frequency telecommunication system having increased resonant frequency comprising:
a transceiver;
a synthesizer;
transmit and receive filters;
an antenna; and
at least one magnetic isolator including Z-phase barium cobalt hexagonal ferrite material having the formula Ba3Co2Fe24O41 formed from fine grain hexagonal ferrite powder having an average particle size of between 300-600 nm and sintered at a temperature
between 1100 and 1250° C.
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